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  • April 2026

  • Thu 9

    Lunar Surface Innovation Consortium (LSIC) Surface Power April Telecon

    Apr 9
    Online
    Bri DeMattia (NASA Glenn Research Center) will present the work of NASA’s Safe, Innovative, Interoperable Modular Power for Lunar Exploration...
  • Thu 9

    AIAA-SF Young Professionals Happy Hour

    Apr 9
    Mountain View CA, USA
    At Ludwig's Biergarten, 383 Castro St, Mountain View, CA 94041, Apr. 9, 2026, 5 - 6:30pm
  • Thu 9

    Launch Long March 6A / Unknown Payload

    Apr 9
    Taiyuan Satellite Launch Center (TSLC), ~39°N, Shanxi, China
    Launch window 03:35-03:46 China Time April 9 | 09:35-09:46 HST April 8 for the 23rd launch from Launch Complex 9A,...
  • Thu 9

    Launch Falcon 9 / Starlink Group 17-21

    Apr 9
    SLC-4E (~35°N), Vandenberg SFB CA, USA
    Launch window 22:39 April 9 - 02:39 April 10 PDT | 16:39-20:39 April 9 HST for 25 internet satellites; Booster...
  • Fri 10

    Ground Control #3: Space and the AI Revolution

    Apr 10 @ 12:00 am HST
    With guest Arnt-Børre Salberg of the Norwegian Computing Center, partner with ESA for THOR Earth observation, a shared platform available...
  • Fri 10

    Artemis II Splashdown in the Pacific Ocean Near San Diego CA, USA

    Apr 10
    Pacific Ocean
    Expected for 17:07 PDT | 14:07 HST | 20:07 EDT | 00:07 UTC, after ~10-day journey around the Moon and...
  • Fri 10

    Pōwehi Day

    Apr 10
    Statewide Hawai’i, USA
    Recognized proclamation to celebrate the first-ever imaged black hole M87* by Event Horizon Telescope collaboration involving Mauna Kea Observatories, given the Hawaiian...
  • Fri 10

    From Earth to the Universe: At Robinson Planetarium

    Apr 10
    Adrian MI, USA
    In honor of Astronomy Month, celebrated around the Earth, this full-dome planetarium program takes the audience out to the colorful...
  • Fri 10

    Space Generation Fusion Forum SGFF 2026

    Apr 10 - Apr 13
    Colorado Springs CO, USA
    Held annually in conjunction with the Space Symposium, SGFF is a multi-day, high-intensity, fast-paced professional development and networking event focused...
  • Sat 11

    25th Yuri’s Night Celebration

    Apr 11
    Los Angeles CA, USA
    No-cost, all-day, family-friendly event at Griffith Observatory featuring Astronauts Jannicke Mikkelsen and Ron Garan. A special ticketed feature presentation is...
  • Sat 11

    Maunakea Observatories’ Participation in Annual Merrie Monarch Parade

    Apr 11
    Hilo HI, USA
    MKO staff, ʻohana and community partners are invited to march in the annual Merrie Monarch Parade representing the Maunakea Observatories....
  • Sat 11

    Oklahoma Space Alliance Meeting

    Apr 11
    Norman OK, USA
    14:00 CDT at Cyber Hall, 914 W Main St, opposite Norman High School; prospective members are welcome. Agenda: Introductions and...
  • Sun 12

    65th Commemoration of Human Spaceflight / Cosmonautics Day

    Apr 12
    Worldwide
    Celebrating Yuri Gagarin, the 1st human to orbit Earth on Vostok 1 spacecraft in 1961; the flight lasted 108 minutes...
  • Sun 12

    Yuri’s Night Celebrations

    Apr 12
    Worldwide
    Launching parties around the world every year on or around April 12th, in commemoration of Yuri Gagarin becoming the first...
  • Sun 12

    Launch Falcon 9 / Starlink Group 10-24

    Apr 12
    SLC-40 (~28°N), Cape Canaveral SFS FL, USA
    Launch window 02:57 - 06:57 EDT | 20:57 Apr 11 - 00:57 Apr 12 HST for 29 internet satellites; Booster...
  • Sun 12

    AIAA Region I Student Conference

    Apr 12 - Apr 13
    College Park MD, USA
    Research papers are presented in a formal technical meeting atmosphere, and ideas are exchanged and programs discussed. Cash prizes given...
  • Mon 13

    Registration Due: Lunar Surface Innovation Consortium Spring Meeting

    Apr 13
    Online
    23:59 EDT | 03:59 UTC April 14. No cost for Online attendance; US$150-220 for in-person (Laurel MD, USA). Theme Accelerate...
    US$1 – US$220
  • Mon 13

    ASCE Earth & Space 2026 Conference

    Apr 13 - Apr 16
    College Station TX, USA
    20th International Conference on Engineering, Science, Construction and Operations in Challenging Environments: ASCE Earth & Space 2026
  • Mon 13

    41st Space Foundation Space Symposium

    Apr 13 - Apr 16
    Colorado Springs CO, USA
    Theme: Building Capacity Through Innovation and Collaboration. Expecting 10,000+ registrants, 247 exhibitors, 24 space agencies, 1500+ organizations. At The Broadmoor...
    Free
  • Mon 13

    Satellite Building Workshop

    Apr 13 - Apr 17
    Singapore
    For undergraduates in STEM-related courses. At Singapore Institute of Technology (SIT)
  • Mon 13

    UN COPUOS Legal Subcommittee (LSC) Meeting

    Apr 13 - Apr 24
    Vienna, Austria
    65th session of the UN COPUOS Legal Subcommittee (LSC). Informal meetings and consultations are expected to take place on April...
  • Tue 14

    Launch Vehicle Avionics Systems Design and Applications – Online Short Course

    Apr 14 - Apr 30
    Online
    George N. Andrew, with 46+ years of experience relating to launch vehicle, spacecraft / instrument avionics architecture, design, manufacturing, integration...
    US$495 – US$1095
  • Tue 14

    Launch Kinetica 1 / Unknown Payload

    Apr 14
    Jiuquan Space Launch Center, ~41°N, Gansu, China
    Scheduled for Noon-12:15 China Time | 04:00 UTC | 18:00 HST April 13, rescheduled from Dec 2025; Kinetica is a...
  • Tue 14

    Launch Falcon 9 / Starlink Group 10-24

    Apr 14
    SLC-40 (~28°N), Cape Canaveral SFS FL, USA
    Launch window 02:13-06:13 EDT | 20:13 Apr 13 - 00:13 Apr 14 HST, for 29 internet satellites. Booster B1080 planned...
  • Tue 14

    Launch Falcon 9 / Starlink Group 17-27

    Apr 14
    SLC-4E (~35°N), Vandenberg SFB CA, USA
    Launch window 19:00-23:00 PDT | 16:00-20:00 HST, for 25 internet satellites. Booster B1082 expected to land on ASDS OCISLY after...
  • Tue 14

    Online Seminar on Power and Propulsion Systems

    Apr 14
    Online
    With Tim Lieuwen of Georgia Institute of Technology, 13:00-14:00 EDT | 07:00-08:00 HST, spanning from fundamentals to current applications and...
  • Tue 14

    CubeSat Developers Workshop 2026 (CDW26)

    Apr 14 - Apr 16
    San Luis Obispo CA, USA
    At Cal Poly campus building number 06, Performing Arts Center (PAC). Workshop sessions include: Core Hardware / Mechanisms, Radiation &...
    US$100 – US$700
  • Tue 14

    26th Integrated Communication, Navigation and Surveillance (ICNS) Conference

    Apr 14 - Apr 16
    Washington DC, USA
    Addressing technology and policy advances in CNS research, development and implementation programs, and policies related to CNS/ATM capabilities and applications....
    US$550
  • Wed 15

    Abstracts Due for International Space Development Conference (ISDC 2026)

    Apr 15
    Online
    44th annual ISDC to be held Jun 4 - Jun 7 in McLean VA, USA, to bring together visionaries in spaceflight, the NewSpace...
  • Wed 15

    NASA Partnership Days

    Apr 15 - Apr 16
    Edwards CA, USA
    At NASA Armstrong flight Research Center, for companies, government agencies and organization to explore collaboration opportunities in advanced research and...
  • Wed 15

    AIAA Defense Forum 2026

    Apr 15 - Apr 18
    Laurel MD, USA
    AIAA secret / NOFORN event covering the strategic, programmatic, and technical topics and policy issues pertaining to the aerospace and...
  • Thu 16

    ICGAC2026: 2nd International Conference on Gravitation, Astrophysics and Cosmology

    Apr 16 - Apr 18
    Paris, France
    Themes include Beyond Gravity and Cosmic Understanding, as described by conference Chair Carlo Viberti of SpaceLand Italy.
  • Thu 16

    30th Annual Design / Build / Fly Competition

    Apr 16 - Apr 19
    Wichita KS, USA
    Applied Aerodynamics, Aircraft Design, Design Engineering and Flight Test Technical Committees of AIAA all pitch in to call forth enthusiastic...
  • Fri 17

    Launch Long March 2D / Unknown Payload

    Apr 17
    Jiuquan Space Launch Center, ~41°N, Gansu, China
    Launch window 12:10-12:24 China Time | 18:10-18:24 Apr 16 HST of 2-stage rocket used for taking satellites to LEO and...
  • Fri 17

    From Earth to the Universe: At Robinson Planetarium

    Apr 17
    Adrian MI, USA
    In honor of Astronomy Month, celebrated around the Earth, this full-dome planetarium program takes the audience out to the colorful...
  • Sat 18

    8th Anniversary of Transiting Exoplanet Survey Satellite (TESS) Launch

    Apr 18
    High Earth Orbit (HEO)
    Space telescope for NASA Explorers program reaches 8th full year in space today, designed to search for exoplanets using the...
  • Sat 18

    Launch Falcon 9 / Starlink Group 17-22

    Apr 18
    SLC-4E (~35°N), Vandenberg SFB CA, USA
    Launch window 07:00-11:00 PDT | 04:00-08:00 HST for 25 internet satellites. Booster B1097 expected to land on ASDS OCISLY after...
  • Sun 19

    Launch New Glenn / BlueBird Block 2 #2

    Apr 19
    SLC-36A, Cape Canaveral SFS FL, ~28°N, USA
    Launch window 06:45-09:43 EDT | 00:45-03:43 HST for one AST Space Mobile satellite for cellular broadband, which features ~223-square-meter communications...
  • Sun 19

    Planetary Society’s Day of Action

    Apr 19 - Apr 20
    Washington DC, USA
    Annual advocacy event that connects space advocates with their members of Congress in Washington D.C. Training 13:00-17:00 Sunday Apr 19....
    US$30 – US$54
  • Mon 20

    Launch Falcon 9 / GPS III SV10

    Apr 20
    SLC-40 (~28°N), Cape Canaveral SFS FL, USA
    Launch window open 02:48-04:05 EST | HST is 20:48-22:05 on Apr 19; 10th of 10 navigation satellites to MEO; 1st...
  • Mon 20

    Rollout of Artemis III Rocket Section

    Apr 20
    New Orleans LA, USA
    Top four-fifths of the Space Launch System (SLS) core stage will be moved from NASA Michoud Assembly Facility to load...
  • Mon 20

    NewSpace Africa Conference – Inclusive Growth: Expanding Space Benefits to all Africans

    Apr 20 - Apr 23
    Libreville, Gabon
    This 5th conference expects 600+ participants from 200+ organizations in 65+ countries, including 50+ African governments, to hear 60+ speakers...
    €300
  • Mon 20

    24th IAA Humans In Space Symposium

    Apr 20 - Apr 24
    Montecatini, Italy
    A platform for a fruitful discussion of fundamental problems and practical issues, exchange of research results and ideas in space...
    €100 – €700
  • Mon 20

    BeyondHubble: Revisiting the Hubble Sequence Across Cosmic Time

    Apr 20 - Apr 24
    Cambridge, United Kingdom
    A meeting revisiting the Hubble Sequence 100 years on: Linking the morphological evolution of galaxies across cosmic time. Invited Speakers: Angela Adamo (Stockholm University) Oscar Agertz (Lund...
  • Tue 21

    Launch Falcon 9 / Starlink Group 17-14

    Apr 21
    SLC-4E (~35°N), Vandenberg SFB CA, USA
    Launch window open 13:00-17:00 PDT | 16:00-20:00 HST for 25 internet satellites. Booster B1100 planned to land on ASDS OCISLY...
  • Tue 21

    Launch HASTE / Bubbles

    Apr 21
    SLC-2, ~38°N, Wallops Flight Facility VA, USA
    Launch window 20:00 Apr 21 - 01:00 Apr 22 EDT | 14:00-19:00 HST for sub-orbital Hypersonic Accelerator Suborbital Test Electron...
  • Tue 21

    AIAA Los Angeles Section Town Hall Meeting: James Webb Space Telescope

    Apr 21
    Lomita CA, USA
    Origins, Development, Operation and Lessons Learned from NASA's James Webb Space Telescope with Jonathan Arenberg, Northrop Grumman Fellow and Chief...
  • Tue 21

    Lyrids Meteor Shower Peak

    Apr 21 - Apr 22
    Worldwide
    Best seen from Northern Hemisphere, with a lower hourly rate in the Southern Hemisphere, Lyrids seem to stream from the...
  • Tue 21

    Mars Exploration Program Analysis Group Meeting

    Apr 21 - Apr 23
    Baltimore MD, USA
    MEPAG Hybrid Meeting #43, online and in Baltimore at Johns Hopkins at Mt Washington, Susquehanna Room, 6225 Smith Avenue. No...
  • Wed 22

    Astronaut Fred Gregory Welcomes Astronaut Scholarship Awardees

    Apr 22
    Los Angeles CA, USA
    At 12:00 PDT, University of Southern California (USC) campus. Astronaut Frederick D. Gregory flew 3 Space Shuttle missions, STS-51B, STS-33...
  • Wed 22

    Annual EarthSpace Webinar

    Apr 22
    Online
    Exploring the intersection of space innovation and planetary stewardship, from 12:00-14:00 EDT / UTC-4; no cost but registration required at...
  • Wed 22

    Webinar: IAF Materials and Structures Committee

    Apr 22
    Online
    Moderator Elizabeth Barrios of Blue Origin welcomes panelists from ArianeGroup, DGLR, Sapienza University of Rome, Women in Aerospace, and CSEM...
  • Wed 22

    US House of Representatives Hearing on NASA Budget FY2027

    Apr 22
    Washington DC, USA
    House Science, Space, and Technology Committee will meet with NASA Administrator Jared Isaacman, 10:00 EDT | 07:00 PDT | 04:00...
  • Wed 22

    Next Generation of Io Science Workshop

    Apr 22 - Apr 23
    Laurel MD, USA
    The goal of this workshop is to bring together interdisciplinary scientists to discuss outstanding science questions about Io -- the...
  • Wed 22

    Results from Early CLPS Deliveries and Upcoming CLPS Exploration Activities

    Apr 22 - Apr 23
    Online
    This online-only Lunar Surface Science Workshop (LSSW), each day 11:00-17:00 EDT | 15:00-21:00 UTC | 05:00-11:00 HST, will share results...
  • Thu 23

    Launch Electron / Kakushin Rising (JAXA Rideshare)

    Apr 23
    Launch Complex 1, ~39°S, Mahia Peninsula, New Zealand
    Launch set for 15:09 New Zealand Standard Time | 03:00 UTC | 17:09 Apr 22 HST, for sending 8 separate...
  • Thu 23

    Venture Café: Launching Innovation from Arizona to Space

    Apr 23
    Phoenix AZ, USA
    With David Ariosto and reps from Rocket Lab, Paragon Space Development, Space Rising and more. 16:30-19:00 MST at 850 PBC,...
  • Thu 23

    Kennedy Space Center (KSC) Elite VIP Tour

    Apr 23 - Apr 24
    Kennedy Space Center Visitor Complex FL, USA
    Exclusive all-day tour begins at 09:00 EDT with a knowledgeable space expert as guide. Includes: Admission and parking, iconic attractions including Rocket Garden, Deep Space...
    US$175
  • Fri 24

    Launch Cheng Zheng 2D / Unknown Payload

    Apr 24
    Xichang Satellite Launch Center, ~28°N, Sichuan, China
    Launch window 14:30-14:51 China Time | 06:30-06:51 UTC | HST is 20:30-20:51 on April 23. Chang Zhen 2D (CZ-2D) is...
  • Fri 24

    Hubble Space Telescope Begins Next Year in Space

    Apr 24
    Low Earth Orbit (LEO)
    NASA spacecraft with 2.4-meter diameter main telescope begins 37th year in space today, launched Apr 24, 1990; could continue operations...
  • Fri 24

    National Day of Space Flight

    Apr 24
    China (Zhongguo)
    Commemorating the launch of China’s first satellite, Dongfanghong-1 on April 24, 1970.
  • Fri 24

    Spacetide Academy Space Business Job-Ready Training Bootcamp

    Apr 24
    Tokyo, Japan
    In Toranomon Area of Tokyo, 09:00-20:00 Japan Time. The lecture sessions cover a wide range of topics, including industry structure...
    Free
  • Fri 24

    From Earth to the Universe: At Robinson Planetarium

    Apr 24
    Adrian MI, USA
    In honor of Astronomy Month, celebrated around the Earth, this full-dome planetarium program takes the audience out to the colorful...
  • Fri 24

    Doc Waller’s Earth & Space Report with Richard Luecke

    Apr 24
    Online
    Award-winning astronomical artist Dick Luecke will show Moon, planets, nebulae and galaxy sketching; via Zoom at 19:00 EDT | 23:00...
  • Sat 25

    Launch Falcon 9 / Starlink Group 17-16

    Apr 25
    SLC-4E (~35°N), Vandenberg SFB CA, USA
    Launch window 07:00-11:00 PDT | 04:00-08:00 HST for 25 internet satellites to LEO. First stage B1088 planned to land on...
  • Sat 25

    NET Late April – Vulcan Rocket Static Fire Testing

    Apr 25
    SLC-41 (~28°N), Cape Canaveral SFS FL, USA
    First test after ULA Vulcan rocket launching from Florida on February 12, 2026, took a spacecraft to GSO but suffered...
  • Sat 25

    21st Annual AIAA Southern California Aerospace Systems & Technology (ASAT) Conference

    Apr 25
    Irvine CA, USA
    To bring together seasoned and new engineers, researchers, leaders, managers, academia and students, to exchange ideas, review achievements and plan...
    US$40 – US$99
  • Sat 25

    The Drive to Fly: Finalists Award Ceremony

    Apr 25
    Daytona Beach FL, USA
    Art competition to encourage future STEM (science, technology, engineering, mathematics) leaders, judged by Astronaut Nicole Stott and others, has been...
  • Sun 26

    Launch Soyuz 2.1a / Progress MS-34 (95P)

    Apr 26
    Baikonur Cosmodrome, ~46°N, Kazakhstan
    Resupply mission to ISS set for 03:21 Baikonur Time UTC+5 | 22:21 UTC Apr 25| 12:21 HST Apr 25; with...
  • Mon 27

    Progress MS-34 (95P) Docks With ISS

    Apr 27
    Low Earth Orbit (LEO)
    Expected 2 days after launch from Kazakhstan, arriving ~22:21 UTC with ~7,280 kg of cargo.
  • Mon 27

    Launch Atlas V 551 / Amazon Leo (LA-06)

    Apr 27
    SLC-41 (~28°N), Cape Canaveral SFS FL, USA
    Launch window 20:52-21:21 EDT | 14:52-15:21 HST | UTC April 28 00:52-01:21, for 29 satellites to Low Earth Orbit for...
  • Mon 27

    Launch Falcon Heavy / ViaSat-3 F3 (ViaSat-3 Asia-Pacific)

    Apr 27
    SLC-39A, ~29°N, Kennedy Space Center FL, USA
    Launch window 10:21-11:46 EDT | 04:21-05:46 HST | 14:21-15:46 UTC for first Falcon Heavy launch since 2024, sending to Geostationary...
  • Mon 27

    Campaign Closes: Send ‘Overview Effect’ Author Frank White to Space

    Apr 27
    Online
    Write an essay, make a video, contribute and perhaps be chosen yourself for a second seat on the suborbital flight.
  • Mon 27

    Celestial Crossroads: Encounters, Intersections and Influences

    Apr 27 - Apr 29
    Istanbul, Türkiye
    Planned topics include star and constellation myth and imagery; modern and ancient astronomy of China, India, Central Asia, West Asia,...
  • Mon 27

    Nuclear and Emerging Technologies for Space (NETS 2026)

    Apr 27 - Apr 30
    Dayton OH, USA
    Speakers include Bhavya Lal and Clive Neal, to bring together visionary engineers building the hardware, policymakers writing the standards, and...
  • Mon 27

    Space Weather Workshop: Space Weather & Society: Transforming Services & Science to Meet User Needs

    Apr 27 - May 1
    Boulder CO, USA
    Meeting annually since 1996, industry, academia, and government explore impacts of space weather on modern technology, including communications, navigation, spacecraft...
    US$50 – US$500
  • Mon 27

    Cislunar Exploration: Challenges and Opportunities – Online Short Course

    Apr 27 - May 11
    Online
    Through May 11, Four instructors convene this class because current USA / international / commercial mission plans, both crewed and...
    US$495 – US$995
  • Tue 28

    Launch Ariane 64 / Amazon Leo (LE-02)

    Apr 28
    Launch Area 4, ~5°N, Guiana Space Centre, French Guiana
    Launch window 05:51-06:39 French Guiana Time | 08:51-09:39 UTC | HST April 17 22:51-23:39, to carry 32 satellites to Low...
  • Tue 28

    NET April 28 – Launch Long March 10B / Unknown Payload

    Apr 28
    Wenchang Space Launch Center, ~19°N, Hainan Island, China
    Flight hazard notices were filed for a launch between April 28 and 30. This first Long March 10B vehicle has...
  • Tue 28

    Shaping the Space Frontier: A Hands-On Simulation

    Apr 28
    Phoenix AZ, USA
    From 09:30-15:00 MST for an "immersive, limited-capacity session" for Arizona Space Congress delegates, deploying a real-world simulation of strategic decision-making...
  • Tue 28

    Space Tank Arizona and Arizona Space Congress

    Apr 28 - Apr 29
    Phoenix AZ, USA
    Space Tank hope to ignite innovation in space by having entrepreneurs / inventors / designers / engineers describe their start-up...
    $125
  • Tue 28

    Lunar Surface Innovation Consortium – LSIC 2026 Spring Meeting

    Apr 28 - Apr 30
    Online / Washington DC, USA
    Theme Accelerate the Pace: Touch Down, Power Up, and Explore! focuses on urgency for lunar infrastructure technology efforts, inviting discussions...
    Free – US$220
  • Tue 28

    Spacecraft Rendezvous and Proximity Operations

    Apr 28 - Jun 2
    Online
    Online short course on Rendezvous and Proximity Operations (RPO), critical for crew transfer, in-space assembly and space debris removal, among...
    US$1595 – US$1795
  • Wed 29

    Launch Falcon 9 / Starlink Group 17-36

    Apr 29
    SLC-4E (~35°N), Vandenberg SFB CA, USA
    Launch window 19:00-23:00 PDT | 16:00-20:00 HST for 25 internet satellites to LEO. First stage booster B1071 expected to land...
  • Wed 29

    Ground Control #3: Space and the A.I. Revolution

    Apr 29
    Oslo, Norway
    Arnt-Børre Salberg is the guest at 17:00-20:00, Mesh Youngstorget, Møllergata 6, Oslo. He and his team have built THOR since...
  • Wed 29

    NASA SmallSat LEARN Forum

    Apr 29
    Online
    "Learning from Experiences, Achievements, and Resolution Navigation" -- Representatives from multiple NASA centers and outside organizations meet to advance NASA...
  • Thu 30

    Webinar: From Stage to Weightlessness – The Making of PARABOLES

    Apr 30
    Online
    Co-Hosted by The AIAA Gravity Dependent Science and Technology Technical Committee (GDST-TC), formerly the Microgravity Space Processes Technical Committee (MSP-TC). Natasha...
  • Thu 30

    Opportunities for On-Orbit Computing

    Apr 30
    Washington DC, USA
    Conversations with industry and government leaders on building, powering and managing data infrastructure in space followed by a networking reception....
  • May 2026

  • Fri 1

    International Space Day

    May 1
    Worldwide
    First Friday in May, events and presentations to promote STEM education and inspire people to continue the work of Space...
  • Fri 1

    Flower Moon

    May 1
    Moon Orbit
    17:24 UTC (07:24 HST).
  • Fri 1

    Launch Falcon 9 / Starlink Group 10-38

    May 1
    SLC-40 (~28°N), Cape Canaveral SFS FL, USA
    Launch window 13:33-17:33 PDT | 07:33-11:33 HST for 29 internet satellites to LEO. First stage B1069 expected to land on...
  • Sat 2

    Launch Falcon 9 / CAS500-2 & Others

    May 2 - May 3
    SLC-4E (~35°N), Vandenberg SFB CA, USA
    Launch window 23:59 May 2 - 00:39 May 3 PDT | 01:59-02:39 CDT | 20:59-21:39 HST for ride-share of multiple...
  • Sat 2

    24th AstroDay

    May 2
    Hilo HI, USA
    Family-friendly free event, 10:00-16:00 HST at Prince Kūhiō Plaza shopping center, to educate and entertain about astronomy and space, with...
  • Sun 3

    GEOINT Symposium 2026

    May 3 - May 6
    Aurora CO, USA
    Includes sessions on The Space Economy, SATCOM, Fusing Space / Air / Surface Sensing. Expecting 4,000+ attendees. Special attention to...
  • Sun 3

    Asia-Pacific Regional IAU Meeting (APRIM 2026)

    May 3 - May 7
    Hong Kong, China
    More than 570 abstracts were received, 14 plenary and 51 invited speakers span 9 themes, and 58 early career astrophysicists...
    HKD2000 – HKD3000
  • Sun 3

    European Geosciences Union General Assembly EGU26

    May 3 - May 8
    Vienna, Austria
    Includes Lunar Session for discussion of the latest advancement in lunar science, exploration and sustainable utilization, including the deep interior,...
    Free – €765
  • Mon 4

    Luxembourg Space Resources Week 2026

    May 4 - May 7
    Luxexpo, Luxembourg
    Hosted annually in Luxembourg, Space Resources Week is organised by the European Space Resources Innovation Centre (ESRIC), in collaboration with...
  • Mon 4

    Online Course: Applied Space Systems Engineering

    May 4 - May 7
    Online
    Practical application of space systems engineering processes throughout the mission lifecycle. CE Units available; Live only, no recording; 11:00-17:00 EDT...
    US$495 – US$1195
  • Mon 4

    4S Symposium (Small Satellites Systems and Services)

    May 4 - May 8
    Forte Village, Sardinia, Italy
    Authors are invited to contribute to this year’s theme Swarming the Skies, Soaring Beyond: from VLEO to Deep Space. As in...
  • Tue 5

    Observation of First American in Space: Alan Shepard

    May 5
    United States of America (USA)
    May 5, 1961, Alan Shepard reached the air / space dividing line acknowledged by U.S. government, 50 miles / 80...
  • Tue 5

    Launch Falcon 9 / Starlink Group 17-29

    May 5
    SLC-4E (~35°N), Vandenberg SFB CA, USA
    Launch window 19:00-23:00 PDT | 16:00-20:00 HST for 24 internet satellites. Core booster B1081 expected to land on ASDS OCISLY...
  • Tue 5

    2nd Canadian Space Launch Conference

    May 5
    Ottawa, Ontario, Canada
    With theme Building a Spacefaring Nation, expects ~400 attendees with added technical content track; at Canada Aviation and Space Museum.
  • Tue 5

    Space Economy Summit Europe 2026

    May 5 - May 6
    Lisbon, Portugal
    Confirmed speakers include Pete Worden, representatives of ESA, Voyager, US State Department, Primo Capital Space Fund and President of the...
  • Tue 5

    Eta Aquariids Meteor Shower Peak

    May 5 - May 6
    Low Earth Orbit (LEO)
    Strongest viewed from southern tropics; north of the equator, expect medium rates of 10-30 per hour just before dawn, with...
  • Wed 6

    C4ISR Global and Space Operations Summit

    May 6 - May 7
    London, United Kingdom
    13th Annual General Meeting for the Global Intelligence, Space, and C4 Community, at Hilton London Syon Park, and for the...
  • Thu 7

    Registration Due: Space Explorers Club

    May 7
    Online
    Monthly online aerospace talks with Astronauts and industry leaders; limited to 30 members. Talks begin May 9 and run through...
    US$999
  • Thu 7

    GEGSLA 14th Operational Meeting

    May 7
    Online
    Global Experts Group on Sustainable Lunar Activities continues discussions on ongoing workstreams and priorities related to the sustainable exploration and...
  • Thu 7

    Orbital Edge Accelerator Networking Reception

    May 7
    San Mateo CA, USA
    A one-of-a-kind program in the space industry connecting private capital, International Space Station (ISS) National Laboratory–provided access to orbit, and...
  • Fri 8

    International Institute of Space Law (IISL) Spring Space Law Symposium

    May 8
    Online
    Organized with the support of the Amsterdam Space Law & Sustainability Centre and Durham University Space Research Centre (SPARC), the...
  • Sat 9

    Rocketry Organization of California (ROC) High Power Launch

    May 9
    Lucerne Valley CA, USA
    Sport Launch, with FAA waiver to 7,000' AGL, 07:00-14:00 PDT, Lucerne Dry Lake Launch Site (34.496343, -116.958720), Cambria Road https://rocstock.org/lucerne-dry-lake-launch-site/....
  • Sat 9

    Launch Falcon 9 / Starlink Group 17-37

    May 9
    SLC-4E (~35°N), Vandenberg SFB CA, USA
    Launch window 07:00-11:00 PDT | 04:00-08:00 HST for 24 internet satellites. Booster B1103 expected to land on ASDS OCISLY after...
  • Sun 10

    Meet Astronaut Steve Frick

    May 10
    Kennedy Space Center FL, USA
    Pilot, space shuttle Atlantis (STS-110); Commander, space shuttle Atlantis (STS-122). Astronaut Encounter and autograph sessions free with admission; can purchase...
  • Mon 11

    Launch Falcon 9 / NROL-172

    May 11
    SLC-4E (~35°N), Vandenberg SFB CA, USA
    Launch window 15:28-19:28 PDT | 12:28-16:28 HST for 13th batch of satellites built by Northrop Grumman and SpaceX for the...
  • Mon 11

    2 Aerospace Mechanisms Courses: Fundamentals and Compliant Design

    May 11 - May 12
    Huntsville AL, USA
    Fundamentals of Space Vehicle Mechanisms with instructor Scott Christiansen, and Compliant Mechanism Design with instructor Todd G Nelson, are both...
    US$995
  • Tue 12

    Launch Falcon 9 / Dragon CRS-2 SpX-34

    May 12
    SLC-40 (~28°N), Cape Canaveral SFS FL, USA
    Launch time set for 19:16 EDT | 13:16 HST | 23:16 UTC for 34th Commercial Resupply Services mission to the...
  • Tue 12

    Launch Long March 6A / Unknown Payload

    May 12
    Taiyuan Satellite Launch Center (TSLC), ~39°N, Shanxi, China
    Launch window 19:55-20:09 China Time | 01:55-02:09 HST for the 24th launch from Launch Complex 9A, and 154th launch from...
  • Tue 12

    Electron Backscatter Diffraction of Planetary Materials Workshop

    May 12 - May 14
    Tempe AZ, USA
    At Arizona State University in Tempe, Arizona, participants will receive theoretical and practical training in preparation of samples, EBSD data...
  • Tue 12

    3rd ESA Earth Observation Commercialisation Forum

    May 12 - May 14
    Seville, Spain
    ESA CommEO brings together global leaders, innovators, and decision-makers across the Earth observation ecosystem. Discover the latest market trends through keynote...
  • Wed 13

    Launch Zhuque-2E / Unknown Payload

    May 13
    Jiuquan Space Launch Center, ~41°N, Gansu, China
    Launch window 11:00-13:08 China Time | HST 17:00-19:08 May 12, expected to be the 4th for the Zhuque-2E medium-sized LOX...
  • Wed 13

    Global Space Technology Convention & Exhibition (GSTCE) 2026

    May 13 - May 14
    Singapore
    Global companies, investors, and policymakers come together to explore how space technologies are being commercialised — and what it takes...
  • Wed 13

    48th Aerospace Mechanisms Symposium 2026

    May 13 - May 15
    Huntsville AL, USA
    At Von Braun Center. The Thursday night banquet will be held in the Space & Rocket Center, under a Saturn...
  • Wed 13

    1st IAA Planetary Sunshade Workshop

    May 13 - May 15
    Nottingham, United Kingdom
    The workshop will bring together engineers, scientists and policy experts to advance the field of planetary sunshades. At University of...
  • Wed 13

    11th International Conference on Recent Advances in Air and Space Technologies (RAST2026)

    May 13 - May 15
    Istanbul, Türkiye
    A forum for the exchange of recent research results and ideas in air and space technologies, it should be of...
  • Thu 14

    First Landing on Mars by China, 5th Observation

    May 14
    Utopia Planitia, 25.1°N 109.9°E, Mars Surface
    Tianwen-1 Lander and Zhurong Rover celebrated today for China's first successful landing on Mars; craft landed on this day in...
  • Thu 14

    AIAA Los Angeles Section Annual Awards Dinner 2026

    May 14
    Los Angeles CA, USA
    Keynote speaker TBA. Awards for Technical Excellence, Best Paper, Membership Advancement, James Wertz Scholarship and other awards will be featured....
    Free – US$70
  • Thu 14

    Inside the Dome

    May 14
    Washington DC, USA
    Subjects on the agenda include: The New Age of Missile Defense, The Hype for Hypersonics, Space-Based Interceptors, Connectivity and Comms, Command and Control, The role...
    Free – US$999
  • Thu 14

    U.S. Astronaut Hall of Fame Induction Ceremony & Gala 2026

    May 14 - May 16
    Kennedy Space Center Visitor Complex FL, USA
    With many NASA Astronauts, including Bob Cabana, Bernard Harris, Joan Higginbotham, Barbara Morgan, Tom Akers and Joe Tanner; Induction Ceremony...
  • Fri 15

    Psyche Spacecraft Uses Mars for Gravity Assist

    May 15
    Mars Orbit
    On its way to the asteroid Psyche, the Psyche spacecraft will pass within 4,500 km of Mars and will harness...
  • Fri 15

    Launch Starship 12 – V3 / Ship 39

    May 15
    Starbase, 25.9°N, Boca Chica TX, USA
    Launch window 17:30-19:43 CDT | 12:30-14:43 HST | UTC 22:30 May 15 - 00:43 May 16 for 12th flight overall...
  • Fri 15

    Launch Falcon 9 / Starlink Group 17-37

    May 15
    SLC-4E (~35°N), Vandenberg SFB CA, USA
    Launch window 07:00-11:00 PDT | 04:00-08:00 HST for 24 internet satellites. Booster B1097 expected to land on ASDS OCISLY after...
  • Fri 15

    A Conversation with ‘Why Space? The Purpose of People’ Author Rick Tumlinson

    May 15
    Online
    First in a series of live webinars with EarthLight Founder Rick Tumlinson, exploring the ideas in his book "Why Space? The...
  • Sat 16

    2026 American Rocketry Challenge National Finals

    May 16
    The Plains VA, USA
    At Great Meadow equestrian center and conservation park. Student teams who have designed, built and launched their rockets into the...
  • Sun 17

    Launch Falcon 9 / 9 x Globalstar 2-R

    May 17
    SLC-40 (~28°N), Cape Canaveral SFS FL, USA
    Launch window 08:50-09:04 EDT | 02:50-03:04 HST for mobile communications network satellites to LEO, replacing MDA existing ones with new...
  • Sun 17

    Meet Astronaut Norm Thagard

    May 17
    Kennedy Space Center FL, USA
    Mission Specialist, space shuttle Challenger (STS-7); Mission Specialist, space shuttle Challenger (STS-51-B); Mission Specialist, space shuttle Atlantis (STS-30); Payload Commander,...
    US$62 – US$77
  • Mon 18

    Launch Falcon 9 / Starlink Group 17-42

    May 18
    SLC-4E (~35°N), Vandenberg SFB CA, USA
    Launch window 19:11-23:11 PDT | 16:11-20:11 HST for 24 internet satellites. First stage Booster B1100 expected to land on ASDS...
  • Mon 18

    IAU Symposium 405: Traversing the Galactic Center in Space and Time

    May 18 - May 22
    Brno, Czech Republic
    Galactic Center of the Milky Way is instrumental in mapping and understanding galaxies since it is the closest galactic nucleus...
    €350
  • Mon 18

    IAU Symposium 406: Future landscape of astrophysical transients: novel approaches in theory and observations

    May 18 - May 22
    Turku, Finland
    At University of Turku; expecting up to 200 participants. Look at events page for the welcome reception on Monday and the...
  • Tue 19

    Launch Vega-C / Solar wind Magnetosphere Ionosphere Link Explorer (SMILE)

    May 19
    Ariane Launch Area 1 (ELV), Guiana Space Centre, ~5°N, French Guiana
    Set for 00:52 French Guiana Time UTC-3 | 17:52 HST May 18 to send astrophysics satellite to elliptical orbit. Joint...
  • Tue 19

    Talk: Telescopes on the Moon, the Future of Astronomy

    May 19
    Online
    Prof. Joe Silk to discuss the Moon as the next great frontier for astronomy. Terrestrial telescopes are facing a crisis as...
  • Tue 19

    Launch Solid-Fuel SLV (Space Launch Vehicle) / Test Flight

    May 19
    Offshore Launch Platform near Jeju Island, South Korea
    South Korea's solid‑fuel space launch vehicle, commonly abbreviated GYŪB (Korean: Goche Yeonlyo Uju Balsache or 고체연료 우주발사체), is an orbital...
  • Tue 19

    2026 ASCEND Conference: Accelerating Space Commerce, Exploration and New Discovery

    May 19 - May 21
    Washington DC, USA
    Commercial Space Policy Summit runs concurrently with ASCEND visionary sessions, inspiring speakers, and a community spirit that welcomes everyone who...
    US$100
  • Wed 20

    CYSAT

    May 20 - May 21
    Paris, France
    Annual international conference dedicated to cybersecurity for space and satellite systems, bringing together satellite operators, space agencies, manufacturers, cybersecurity experts,...
    €50 – €500
  • Thu 21

    8th Anniversary of Chang’E-4 Queqiao Relay Satellite Launch

    May 21
    Earth-Moon L2 Lagrange point
    China Queqiao “bridge of magpies” satellite reaches 8 full years in space today, launched 2018 to provide far side communications...
  • Thu 21

    NET May 21 — Launch GSLV Mk II / GISAT-1A (EOS-05)

    May 21
    Satish Dhawan Space Center, ~14°N, Sriharikota, India
    Launch window 08:45-12:45 India Time | HST 17:15-21:15 May 20 for Earth-observing satellite to geostationary orbit above India. Expected to...
  • Thu 21

    Abstracts Due for AIAA SciTech Forum

    May 21
    Online
    To be held Jan 11-15 2027 in Orlando FL, USA, expecting 6,000+ attendees from 46+ countries. Presentations and papers can...
  • Fri 22

    Launch Atlas V551 / Amazon Leo (LA-07)

    May 22
    SLC-41 (~28°N), Cape Canaveral SFS FL, USA
    29 satellites for broadband internet going to LEO on this launch, part of planned 7,000+ to be in 98 orbital...
  • Fri 22

    Launch Electron / Viva La Strix (StriX Launch 9)

    May 22
    Launch Complex 1, ~39°S, Mahia Peninsula, New Zealand
    Launch set for 21:30 New Zealand Daylight Time | HST 23:30 May 21 for Earth-imaging synthetic aperture radar satellite built...
  • Fri 22

    Launch Starship 12 — V3 / Ship 39

    May 22
    Starbase, 25.9°N, Boca Chica TX, USA
    Launch window open 17:30-19:00 CDT | 12:30-14:00 HST | 22:30 UTC for 12th flight overall of 2-stage Starship vehicle and...
  • Sat 23

    Launch Falcon 9 / Starlink Group 17-37

    May 23
    SLC-4E (~35°N), Vandenberg SFB CA, USA
    Another batch of 24 satellites to launch as part of the Starlink space-based Internet communication mega-constellation.
  • Sun 24

    NET May 24 – Launch Long March 2F / Shenzhou 23 Crew

    May 24
    Jiuquan Space Launch Center, ~41°N, Gansu, China
    Launch scheduled for 23:08 Beijing Time | 15:08 UTC | 05:08 HST of 3 Taikonauts to Tiangong Space Station -...
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Established in 1976, Space Age Publishing Company operates its Hawaiʻi (1988) and California offices. Space Age publishes Space Calendar weekly since 1983 and Lunar Enterprise Daily, and pursues a business plan consistent with establishing a third office on the Moon.

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