• Wednesday

    — Centre National D’études Spatiales (CNES), European Space Agency (ESA),
    Bordeaux, France
    Winners of the local hackathons will compete for international semi-finals and finals. This event takes place every two years and is currently preparing its 6th edition. Last...

    Thursday

    — Full Moon,
    Moon Orbit
    02:12 UTC (14:12 HT)
    — National Aeronautics and Space Administration (NASA),
    Online
    NASA Postdoctoral Program offers US and international scientists the opportunity to advance their research while contributing to NASA’s scientific goals. The NPP supports fundamental science; explores the...
    — RKK Energiya,
    Baikonur Cosmodrome, ~46°N, Kazakhstan
    Launch scheduled for 16:00 Kazakhstan Time | 01:00 HST | 11:00 UTC for new launch vehicle, Soyuz-5, called "Irtysh", that can take 34,000 kg to LEO.
    — SpaceX,
    SLC-4E (~35°N), Vandenberg SFB CA, USA
    Launch window 17:03-21:03 PDT | 13:03-17:03 HST | 23:03 Apr 2 - 03:03 Apr 3 UTC for 25 internet satellites to LEO.

    Friday

    — Kennedy Space Center Visitor Complex,
    Kennedy Space Center Visitor Complex FL, USA
    Yuri’s Night joins Kennedy Under the Stars to host the official East Coast flagship event, 18:00 EDT (entry at 17:00). Yuriʻs Night honors the first human in...
    US$65

    Saturday

    — Comet C / 2026 A1 (MAPS),
    Deep Space
    Predicted date for the comet to make a close pass by the Sun (perihelion), potentially triggering a sudden brightening and dramatic tail. If it survives the encounter,...

    Sunday

    — Kennedy Space Center Visitor Complex,
    Kennedy Space Center Visitor Complex FL, USA
    NASA Astronaut and scientist, he flew on Space Shuttle Columbia for STS-83 and STS-94, flew on 5 Spacelab flights, led research on semiconductor material, and was founding...

    Monday

    — American Institute of Aeronautics and Astronautics (AIAA),
    Online
    Through May 13; Don Edberg -- Professor of Aerospace Engineering, Cal Poly Pomona; Adjunct Lecturer, Astronautical Engineering, University of Southern California (USC); Former Boeing Technical Fellow --...
    US$695 – US$1595
    — Embry-Riddle Aeronautical University, Nanjing University of Aeronautics & Astronautics,
    Tokyo, Japan
    A dynamic platform for professionals, engineers, academics, and industry leaders to share knowledge, present groundbreaking research, and explore the latest advancements in aerospace engineering. Chairperson is Koichi...

    Tuesday

    — China Aerospace Science and Technology Corporation (CASC),
    Wenchang Space Launch Center, ~19°N, Hainan Island, China
    Launch window 21:30-21:47 China Time | 03:30-03:47 HST for 9th launch from Commercial LC-1, 59th launch from Wenchang. Long March 8 can take up to 5000 kg...
    — Northrop Grumman (NG),
    SLC-8 (~35°N), Vandenberg SFB CA, USA
    Launch window 07:30-12:30 PDT | 01:30-06:30 HST for an ESPA class satellite based on the Aegis Aerospace M-1 satellite bus used on the STPSat-4 mission for hosting...
    — National Aeronautics and Space Administration (NASA), Association of Spaceflight Professionals (ASP),
    Online
    HRP IWS is the primary venue for reporting progress and results from HRP-funded research and technology tasks to Program Management, with the additional benefit of permitting cross-discipline...
    — International Academy of Astronautics (IAA),
    Madrid, Spain
    The foremost purpose of Space Situational Awareness (SSA) is to provide decision-making processes with a quantifiable and timely body of evidence (predictive/imminent/forensic) of behavior(s) attributable to specific...

    Wednesday

    — SpaceX,
    SLC-40 (~28°N), Cape Canaveral SFS FL, USA
    Set for 08:51 EDT (02:51 HST), 24th flight of Orbital ATK uncrewed supply craft and 23rd to ISS under Commercial Resupply Services contract with NASA; booster will...

    Thursday

    — American Institute of Aeronautics and Astronautics (AIAA),
    Online
    Through May 14, this course will demystify the space weather topic, new to many people, as it affects a wide variety of space systems. The course will...
    US$1595 – US$1795
    — Lunar Surface Innovation Consortium (LSIC), Johns Hopkins University Applied Physics Lab (JHU-APL),
    Online
    Bri DeMattia (NASA Glenn Research Center) will present the work of NASA’s Safe, Innovative, Interoperable Modular Power for Lunar Exploration (SIIMPLE) team. At 11:00 EDT | 15:00...
    — American Institute of Aeronautics and Astronautics (AIAA) San Francisco Section,
    Mountain View CA, USA
    At Ludwig's Biergarten, 383 Castro St, Mountain View, CA 94041, Apr. 9, 2026, 5 - 6:30pm
    — China Aerospace Science and Technology Corporation (CASC),
    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, and 153rd launch from Taiyuan Satellite Launch...
    — SpaceX,
    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 B1063 to land on ASDS OCISLY after...

    Friday

    With guest Arnt-Børre Salberg of the Norwegian Computing Center, partner with ESA for THOR Earth observation, a shared platform available to anyone with basic Python skills. At...
    — Hawai'i, USA,
    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 name Pōwehi; imaged in April 2017 and...
    — Robinson Planetarium,
    Adrian MI, USA
    In honor of Astronomy Month, celebrated around the Earth, this full-dome planetarium program takes the audience out to the colorful birthplaces and burial grounds of stars, and...
    — Space Generation Advisory Council (SGAC),
    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 on the global space industry. Students and...

    Saturday

    — The SpaceKind Foundation, Griffith Observatory,
    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 at 7pm followed by a VIP reception...
    — Oklahoma Space Alliance,
    Norman OK, USA
    14:00 CDT at Cyber Hall, 914 W Main St, opposite Norman High School; prospective members are welcome. Agenda: Introductions and review of Space events this past month;...

    Sunday

    — Yuri's Night,
    Worldwide
    Launching parties around the world every year on or around April 12th, in commemoration of Yuri Gagarin becoming the first human to venture into space on April...
    — SpaceX,
    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 1080 expected to land on ASDS JRTI...
    — American Institute of Aeronautics and Astronautics (AIAA),
    College Park MD, USA
    Research papers are presented in a formal technical meeting atmosphere, and ideas are exchanged and programs discussed. Cash prizes given for 1st, 2nd and 3rd place papers...

    Monday

    — Lunar Surface Innovation Consortium (LSIC), Johns Hopkins University Applied Physics Lab (JHU-APL),
    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 the Pace: Touch Down, Power Up, and...
    US$1 – US$220
    — American Society of Civil Engineers (ASCE), Texas A&M University,
    College Station TX, USA
    20th International Conference on Engineering, Science, Construction and Operations in Challenging Environments: ASCE Earth & Space 2026
    — Space Foundation,
    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 Hotel & Cheyenne Mountain Resort. Access to...
    Free
    — Space Faculty,
    Singapore
    For undergraduates in STEM-related courses. At Singapore Institute of Technology (SIT)
    — United Nations Office of Outer Space Affairs (UNOOSA),
    Vienna, Austria
    65th session of the UN COPUOS Legal Subcommittee (LSC). Informal meetings and consultations are expected to take place on April 13-14 and April 23-24, surrounding the main...

    Tuesday

    — CAS Space subsidiary of Chinese Academy of Sciences,
    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 solid-propellant 4-stage light launch vehicle, 30m tall...
    — SpaceX,
    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 to land on ASDS JRTI after this...
    — SpaceX,
    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 this 21st flight.
    — American Institute of Aeronautics and Astronautics (AIAA),
    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 unsolved problems at the intersection of combustion,...
    — California Polytechnic State University (Cal Poly),
    San Luis Obispo CA, USA
    At Cal Poly campus building number 06, Performing Arts Center (PAC). Workshop sessions include: Core Hardware / Mechanisms, Radiation & Reliability, Comm Systems, Payloads, Deployment, Software /...
    US$100 – US$700
    — Integrated Communications, Navigations and Surveillance (ICNS), National Aeronautics and Space Administration (NASA), American Institute of Aeronautics and Astronautics (AIAA),
    Washington DC, USA
    Addressing technology and policy advances in CNS research, development and implementation programs, and policies related to CNS/ATM capabilities and applications. Includes a workshop on interaction between launches...
    US$550

    Wednesday

    — National Aeronautics and Space Administration (NASA),
    Edwards CA, USA
    At NASA Armstrong flight Research Center, for companies, government agencies and organization to explore collaboration opportunities in advanced research and technology development with NASA. 08:00-16:00 PDT on...
    — Johns Hopkins University Applied Physics Lab (JHU-APL), American Institute of Aeronautics and Astronautics (AIAA),
    Laurel MD, USA
    AIAA secret / NOFORN event covering the strategic, programmatic, and technical topics and policy issues pertaining to the aerospace and defense community.

    Thursday

    — American Institute of Aeronautics and Astronautics (AIAA),
    Wichita KS, USA
    Applied Aerodynamics, Aircraft Design, Design Engineering and Flight Test Technical Committees of AIAA all pitch in to call forth enthusiastic creativity from the next generation. College-student teams...

    Friday

    — China Aerospace Science and Technology Corporation (CASC),
    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 SSO. This would be the 97th successful...
    — Robinson Planetarium,
    Adrian MI, USA
    In honor of Astronomy Month, celebrated around the Earth, this full-dome planetarium program takes the audience out to the colorful birthplaces and burial grounds of stars, and...

    Saturday

    — SpaceX,
    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 this 8th flight.

    Sunday

    — Blue Origin,
    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 array making it the largest commercial deployment...
    — The Planetary Society,
    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. Congressional meetings Monday Apr 20. Anyone age...
    US$30 – US$54

    Monday

    — SpaceX,
    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 stage booster planned to land on autonomous...
    — National Aeronautics and Space Administration (NASA), United Launch Alliance (ULA),
    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 on a barge for delivery to Kennedy...
    — International Academy of Astronautics (IAA), Italian Space Agency (ASI),
    Montecatini, Italy
    A platform for a fruitful discussion of fundamental problems and practical issues, exchange of research results and ideas in space biology and medicine, including: – Analogue Environments...
    €100 – €700
    — Kavli Institute for Cosmology,
    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 University) Michele Cappellari (University of Oxford) Andrei...

    Tuesday

    — SpaceX,
    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 after this 5th flight. This is the...
    — Rocket Lab,
    SLC-2, Wallops Flight Facility WA, ~38°N, 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 (HASTE) test program of Rocket Lab, using...
    — American Institute of Aeronautics and Astronautics (AIAA) Los Angeles Section,
    Lomita CA, USA
    Origins, Development, Operation and Lessons Learned from NASA's James Webb Space Telescope with Jonathan Arenberg, Northrop Grumman Fellow and Chief Mission Architect for Science and Robotic Exploration,...
    — Comet C/1861 G1 (Thatcher),
    Worldwide
    Best seen from Northern Hemisphere, with a lower hourly rate in the Southern Hemisphere, Lyrids seem to stream from the Constellation Lyra. They actually derive from the...
    — Lunar and Planetary Institute (LPI), Universities Space Research Association (USRA),
    Baltimore MD, USA
    MEPAG Hybrid Meeting #43, online and in Baltimore at Johns Hopkins at Mt Washington, Susquehanna Room, 6225 Smith Avenue. No charge but registration required.

    Wednesday

    — Earthlight Foundation,
    Online
    Exploring the intersection of space innovation and planetary stewardship, from 12:00-14:00 EDT / UTC-4; no cost but registration required at https://docs.google.com/forms/d/e/1FAIpQLSd2yLblO6EqWkVLaCtst5oMSbSdwDAq3_WiuUW5fMOwStqb2Q/viewform
    — International Astronautical Federation (IAF),
    Online
    Moderator Elizabeth Barrios of Blue Origin welcomes panelists from ArianeGroup, DGLR, Sapienza University of Rome, Women in Aerospace, and CSEM at 15:00-16:00 CEST | 13:00-14:00 UTC |...
    — Johns Hopkins University Applied Physics Lab (JHU-APL),
    Laurel MD, USA
    The goal of this workshop is to bring together interdisciplinary scientists to discuss outstanding science questions about Io -- the most volcanically active world in the Solar...
    — Solar System Exploration Research Virtual Institute (SSERVI), National Aeronautics and Space Administration (NASA),
    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 from the first NASA CLPS missions, provide...

    Thursday

    — Rocket Lab,
    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 spacecraft to SSO, including ones for education,...
    — Kennedy Space Center Visitor Complex,
    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 Launch Complex, Space Shuttle Atlantis, Spaceport KSC ride,...
    US$175

    Friday

    — China Aerospace Science and Technology Corporation (CASC),
    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 expected to make its 103rd flight, powered...
    — National Aeronautics and Space Administration (NASA),
    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 until 2040s.
    — China National Space Administration (CNSA),
    China (Zhongguo)
    Commemorating the launch of China’s first satellite, Dongfanghong-1 on April 24, 1970.
    — Robinson Planetarium,
    Adrian MI, USA
    In honor of Astronomy Month, celebrated around the Earth, this full-dome planetarium program takes the audience out to the colorful birthplaces and burial grounds of stars, and...

    Saturday

    — Agency for Defense Development (ADD) of South Korea,
    Sea Launch
    Launch window open 14:00-18:00 Korea Time | 05:00-09:00 UTC | HST is 19:00-23:00 on Apr 24; to LEO for first orbital full-version launch after 2 sub-orbital tests...
    — SpaceX,
    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 ASDS OCISLY after this 15th flight.
    — United Launch Alliance (ULA),
    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 an anomaly in one of the four...
    — Astronaut Scholarship Foundation (ASF),
    Daytona Beach FL, USA
    Art competition to encourage future STEM (science, technology, engineering, mathematics) leaders, judged by Astronaut Nicole Stott and others, has been on display and judged, and awardees will...

    Sunday

    — Roscosmos State Corporation,
    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 ~7,280 kg of cargo; after ~2 days,...

    Monday

    — ISS Partners (NASA, Roscosmos, JAXA, ESA and CSA-ASC),
    Low Earth Orbit (LEO)
    Expected 2 days after launch from Kazakhstan, arriving ~22:21 UTC with ~7,280 kg of cargo.
    — United Launch Alliance (ULA),
    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 Amazon Leo internet system. Constellation planned to...
    — SpaceX,
    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 Transfer Orbit 3 Ka-band satellites offering 1-terabit-per-second...
    — Sophia Centre for the Study of Cosmology in Culture, University of Wales Trinity Saint David, Yildiz Technical University,
    Istanbul, Türkiye
    Planned topics include star and constellation myth and imagery; modern and ancient astronomy of China, India, Central Asia, West Asia, North Africa, the Eastern Mediterranean and Europe.
    — American Nuclear Society (ANS),
    Dayton OH, USA
    Speakers include Bhavya Lal and Clive Neal, to bring together visionary engineers building the hardware, policymakers writing the standards, and agency leaders deploying the capital. When NASA,...

    Tuesday

    — Arianespace,
    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 Earth Orbit for broadband internet, part of...
    — China National Space Administration (CNSA),
    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 had a successful wet dress rehearsal and...
    — Space Rising,
    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 for the emerging space economy. At Defense...
    — World Innovation Network, Space Rising,
    Phoenix AZ, USA
    Space Tank hope to ignite innovation in space by having entrepreneurs / inventors / designers / engineers describe their start-up business, for the purpose of receiving support...
    $125
    — Lunar Surface Innovation Consortium (LSIC), Johns Hopkins University Applied Physics Lab (JHU-APL),
    Online / Washington DC, USA
    Theme Accelerate the Pace: Touch Down, Power Up, and Explore! focuses on urgency for lunar infrastructure technology efforts, inviting discussions on how we can accelerate progress together....
    Free – US$220
    — American Institute of Aeronautics and Astronautics (AIAA), Johns Hopkins University,
    Online
    Online short course on Rendezvous and Proximity Operations (RPO), critical for crew transfer, in-space assembly and space debris removal, among other uses. Instructor is Pradipto Ghosh; 12...
    US$1595 – US$1795

    Wednesday

    — SpaceX,
    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 on ASDS barge OCISLY in the Pacific...
    — Spaceport Norway,
    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 he gave a talk on artificial intelligence...
    — National Aeronautics and Space Administration (NASA),
    Online
    "Learning from Experiences, Achievements, and Resolution Navigation" -- Representatives from multiple NASA centers and outside organizations meet to advance NASA goals via networking, information exchange, and collaborative...

    Thursday

    — American Institute of Aeronautics and Astronautics (AIAA), American Institute of Aeronautics and Astronautics (AIAA) Los Angeles Section,
    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 Tsakos shares the story of Space Wonders:...
    — SpaceNews,
    Washington DC, USA
    Conversations with industry and government leaders on building, powering and managing data infrastructure in space followed by a networking reception. 15:00-19:00 EDT. With FCC Space Bureau Chief...
  • Friday

    — International Space Day,
    Worldwide
    First Friday in May, events and presentations to promote STEM education and inspire people to continue the work of Space explorers; originally began as ‘National Space Day’...
    — Full Moon,
    Moon Orbit
    17:24 UTC (07:24 HST).
    — SpaceX,
    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 ASDS ASOG after this 31st flight.

    Saturday

    — SpaceX,
    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 satellites including first spacecraft of Wichita State...
    — Maunakea Observatories (MKO), University of Hawai'i Institute for Astronomy,
    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 >30 organizations hoping to inspire next-generation science...

    Sunday

    — United States Geospatial Intelligence Foundation (USGIF),
    Aurora CO, USA
    Includes sessions on The Space Economy, SATCOM, Fusing Space / Air / Surface Sensing. Expecting 4,000+ attendees. Special attention to students and young professionals. At Gaylord Rockies...
    — International Astronomical Union (IAU), International Academy of Astronautics (IAA), United Nations Office of Outer Space Affairs (UNOOSA),
    Hong Kong, China
    More than 570 abstracts were received, 14 plenary and 51 invited speakers span 9 themes, and 58 early career astrophysicists have received travel grants for this Asia...
    HKD2000 – HKD3000
    — European Geosciences Union,
    Vienna, Austria
    Includes Lunar Session for discussion of the latest advancement in lunar science, exploration and sustainable utilization, including the deep interior, subsurface structure, surface morphology, up to atmospheric...
    Free – €765

    Monday

    — Luxembourg Space Agency,
    Luxexpo, Luxembourg
    Hosted annually in Luxembourg, Space Resources Week is organised by the European Space Resources Innovation Centre (ESRIC), in collaboration with the European Space Agency (ESA), the Luxembourg...
    — American Institute of Aeronautics and Astronautics (AIAA),
    Online
    Practical application of space systems engineering processes throughout the mission lifecycle. CE Units available; Live only, no recording; 11:00-17:00 EDT | 15:00-19:00 UTC | 08:00-14:00 PDT |...
    US$495 – US$1195
    — ESA Conference Bureau,
    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 the tradition of the 4S Symposium, the...

    Tuesday

    — NordSpace,
    Ottawa, Ontario, Canada
    With theme Building a Spacefaring Nation, expects ~400 attendees with added technical content track; at Canada Aviation and Space Museum.
    — European Space Agency (ESA), Portuguese Space Agency,
    Lisbon, Portugal
    Confirmed speakers include Pete Worden, representatives of ESA, Voyager, US State Department, Primo Capital Space Fund and President of the Portuguese Space Agency. At Feira Internacional de...
    — Halley’s Comet,
    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 this year's waning gibbous Moon reducing viewing...

    Wednesday

    — International Quality & Productivity Center (IQPC),
    London, United Kingdom
    13th Annual General Meeting for the Global Intelligence, Space, and C4 Community, at Hilton London Syon Park, and for the first time including a dedicated Space Operations...

    Thursday

    — SpaceX,
    Starbase, 25.9°N, Boca Chica TX, USA
    12th flight overall of the two-stage Starship vehicle, but first of bigger / more-powerful Version 3 / V3, with higher thrust for both the Super Heavy booster...
    — Astronaut Scholarship Foundation (ASF),
    Online
    Monthly online aerospace talks with Astronauts and industry leaders; limited to 30 members. Talks begin May 9 and run through March 2027. Benefits Astronaut Scholarship Foundation. Program...
    US$999
    — Global Experts Group on Sustainable Lunar Activities (GEGSLA), Moon Village Association (MVA),
    Online
    Global Experts Group on Sustainable Lunar Activities continues discussions on ongoing workstreams and priorities related to the sustainable exploration and use of the Moon, with focus on...
    — ISS National Laboratory,
    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 a world-class expert ecosystem to build and...

    Friday

    Monday

    Tuesday

    — Lunar and Planetary Institute (LPI), Universities Space Research Association (USRA),
    Tempe AZ, USA
    At Arizona State University in Tempe, Arizona, participants will receive theoretical and practical training in preparation of samples, EBSD data acquisition, and data processing for planetary samples....

    Wednesday

    — Singapore Space & Technology Think Tank,
    Singapore
    Global companies, investors, and policymakers come together to explore how space technologies are being commercialised — and what it takes to translate capability into adoption, ROI, and...
    — Mechanisms Education Association,
    Huntsville AL, USA
    At Von Braun Center. The Thursday night banquet will be held in the Space & Rocket Center, under a Saturn V launch vehicle. Pre-event courses on May...
    — International Academy of Astronautics (IAA),
    Nottingham, United Kingdom
    The workshop will bring together engineers, scientists and policy experts to advance the field of planetary sunshades. At University of Nottingham.

    Thursday

    — China National Space Administration (CNSA),
    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 2021 in Utopia Planitia, Mars Surface.
    — American Institute of Aeronautics and Astronautics (AIAA) Los Angeles Section,
    Los Angeles CA, USA
    Keynote speaker TBA. Awards for Technical Excellence, Best Paper, Membership Advancement, James Wertz Scholarship and other awards will be featured. 17:00-22:00 PDT, Cambria Hotel LAX, 199 Continental...
    Free – US$70
    — Kennedy Space Center Visitor Complex, Astronaut Scholarship Foundation (ASF), Delaware North,
    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 & Gala at Kennedy Space Center; talks,...

    Friday

    Saturday

    — American Institute of Aeronautics and Astronautics (AIAA),
    The Plains VA, USA
    At Great Meadow equestrian center and conservation park. Student teams who have designed, built and launched their rockets into the Top 100 will compete for the title...

    Monday

    Tuesday

    Wednesday

    — CYSEC, European Space Agency (ESA),
    Paris, France
    Annual international conference dedicated to cybersecurity for space and satellite systems, bringing together satellite operators, space agencies, manufacturers, cybersecurity experts, and policymakers to discuss threats, regulations, and...
    €50 – €500

    Thursday

    — China National Space Administration (CNSA),
    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 to Earth from Chang'E-4 lander / rover.
    — American Institute of Aeronautics and Astronautics (AIAA),
    Online
    To be held Jan 11-15 2027 in Orlando FL, USA, expecting 6,000+ attendees from 46+ countries. Presentations and papers can be an effective way to hone scientific...

    Monday

    — USA Congress,
    Nationwide USA
    NASA Artemis program to land 1st Woman and Person of Color on Moon is well underway as today is recognized for Kennedy declaring to congress “I believe that...