• Wednesday

    — American Institute of Aeronautics and Astronautics (AIAA),
    League City TX, USA
    Taking place at South Shore Harbour Resort & Conference Center in League City, Texas; ASCENDxTexas is where leaders from government, industry, and academia come together to collaborate on...
  • Monday

    Tuesday

    — National Aeronautics and Space Administration (NASA), Association of Spaceflight Professionals (ASP),
    Online
    For more information, visit the NASA Human Research Program Investigators' Workshop event page; this year's event will be held in a virtual format only.  Continue to visit the...

    Monday

    — Lunar and Planetary Institute (LPI), Universities Space Research Association (USRA),
    The Woodlands TX, USA
    Expecting 2,000+ for the latest science, research, discoveries; at Waterway Marriott and online
    $400 – $700

    Friday

    — Sun-Earth,
    Global / Inter-Global
    Occurs 04:45 HST / 14:45 UTC; March equinox is known as the vernal equinox (or spring equinox) in the Northern Hemisphere and as the autumnal equinox (or...

    Sunday

    TBD, Botswana
    Part of AfAS-2026 Annual Conference (Botswana), In collaboration with NASA SSERVI Features presentations on lunar science, planetary exploration, and human spaceflight to the Moon and beyond. Call...

    Monday

    — Access Intelligence LLC,
    Walter E. Washington Convention Center
    Satellite industry first and largest experience of the year — uniting commercial innovators, government and military decision-makers, and end-users from 110+​ ​countries in Washington, D.C.
    $149

    Monday

    — UzCosmos National Space Agency of Uzbekistan,
    Tashkent, Uzbekistan
    5th conference to convene space agencies, satellite operators, startups; expecting 400+ delegates, 40+ speakers, 25 exhibitors.
    £995 – £1195
  • Wednesday

    — National Aeronautics and Space Administration (NASA),
    Nationwide USA
    Commemorations occur today in honor of 1st ever NASA Space Shuttle Columbia carrying John Young and pilot Robert Crippen around Earth on 54.5-hour mission in 1981.
    — United Launch Alliance (ULA),
    SLC-41, Cape Canaveral SFS FL, ~28°N, USA
    NET Apr — Launch Atlas V / Starliner: Next launch of Starliner crew vehicle set to occur "early 2026", unknown whether craft will carry crew on this...

    Friday

    — 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...

    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...

    Monday

    — 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.
    Free
    — 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

    Wednesday

    — Johns Hopkins University Applied Physics Lab (JHU-APL),
    Laurel MD, USA
    AIAA secret/NOFORN event covering the strategic, programmatic, and technical topics and policy issues pertaining to the aerospace and defense community.

    Saturday

    Sunday

    — The Planetary Society,
    Washington DC, USA
    Annual advocacy event that connects space advocates with their members of Congress in Washington D.C.

    Tuesday

    — 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...

    Friday

    — 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.

    Monday

    — 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.
  • Friday

    — International Lunar Observatory Association (ILOA Hawai'i),
    Scarsdale NY, USA
    Wendy Crumrine to present "First Women on the Moon" to Scarsdale High School (SHS) students, marking another Galaxy Forum for the SHS Centennial Plaque.
    — 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’...

    Sunday

    — 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

    — International Astronomical Union (IAU),
    Hong Kong, China
    The Asia Pacific Regional International Astronomical Union (IAU) Meeting is a highly anticipated gathering that convenes astronomers, researchers, and enthusiasts from countries across the Asia Pacific region....

    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.

    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.

    Monday

    Tuesday

    — American Institute of Aeronautics and Astronautics (AIAA), Commercial Space Federation (CSF), Space Force Association, Space Generation Advisory Council (SGAC), Lockheed Martin, ISS National Laboratory,
    Washington DC, USA
    Accelerating Space Commerce, Exploration, and New Discovery

    Thursday

    — China National Space Administration (CNSA),
    Earth-Moon L2 Lagrange point
    China Queqiao “bridge of magpies” satellite reaches 8 full years / enters 9th year in space today, launched 2018 to provide far side communications to Earth from...

    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...

    Tuesday

    — von Karman Institute for Fluid Dynamics,
    Brussels, Belgium
    Organized by the von Karman Institute for Fluid Dynamics, the 32nd AIAA/CEAS Aeroacoustics Conference (Aeroacoustics 2026) is the premier international forum dedicated to aeroacoustics research and innovation....
    €475
  • Monday

    — China National Space Administration (CNSA),
    Apollo Basin, 153.99° W 41.63° S, Moon Surface
    Chang'E-6 mission is commemorated, having landed on this day in 2024, and returning the first-ever samples from the lunar farside to Earth.
    — Rocket Lab,
    Launch Complex 1, Mahia Peninsula, New Zealand
    Launch Electron / Venus probe: Independent mission to Venus developed by Rocket Lab and MIT to send tiny probe flying in atmosphere for 5 minutes at altitude 48-60...

    Tuesday

    — Space Resources Roundtable (SRR),
    Golden CO, USA
    As it has done since 1999, this conference will bring together world experts from space agencies, research organizations, academia, the space private sector, the mining supply chain,...
    — International Astronautical Federation (IAF), Rwanda Space Agency (RSA),
    Kigali, Rwanda
    Uniting Space and Earth for Climate Resilience. The conference will bring together the international community, space agencies, industry, government, academia and NGOs, and representatives of non-space sectors...
    — South African Radio Astronomy Observatory (SARAO), ZA Space, GMN Fairs, Hauweng, Advanced Business Events,
    Pretoria, South Africa
    Expecting 300 exhibitors, 500 companies, 25 countries, 3,000 B2B (business to business) meetings

    Thursday

    Friday

    Monday

    — Universities Space Research Association (USRA), Lunar and Planetary Institute (LPI),
    Houston TX, USA
    10-week paid summer academy for analytical and laboratory skills in planetary sample science. At LPI, near NASA Johnson.

    Tuesday

    — Canadian Astronomical Society (CASCA),
    Montréal, Quebec, Canada
    We are delighted to invite you to the Canadian Astronomical Society's Annual General Meeting, CASCA 2026: MIL-ion Futures of Astrophysics, taking place from June 9-11, 2026 at the Université de...

    Saturday

    Tuesday

    — Lunar Calendar,
    Worldwide
    New Year 1 Muharram (1st day) to begin at sunset on Jun 16; if young New Moon is not visible the beginning of the month and year...

    Sunday

    — European Lunar Sympsoium (ELS) Organizers, Open University, Solar System Exploration Research Virtual Institute (SSERVI),
    Nancy, France
    Annual international conference that brings together around 200 researchers, engineers, and professionals working on lunar science and exploration. Hosted each year in a different European city, ELS...

    Monday

    — Spaceland, Italy, Space Summits,
    Rome, Italy
    Meeting is dedicated entirely to the latest developments in all Astronomy, Astrophysics and Space Science related themes. The conference will highlight particular areas of promising technological development,...

    Tuesday

    Thursday

    — SatCom Industry Association (SIA-India),
    New Delhi, India
    Theme is Pioneering Innovations in Space Technology: India’s Journey towards Global Partnerships; key topics include entrepreneurship, legal aspects, lunar exploration. 850+ participants expected from 36+ countries, for...
    $100 – $275

    Saturday

  • Wednesday

    — Space Age Publishing Company (SPC), Interstellar University LLC,
    Topeka KS, USA
    Hosted at the Kansas State Capitol Building, invited participants will advance the long-range vision of an Interstellar University in the Ad Astra State; email to learn more.
    — Japan Aerospace Exploration Agency (JAXA),
    Asteroid 98943 Torifune Trajectory
    JAXA Hayabusa 2 mission to flyby S-type asteroid 98943 Torifune this month and rendezvous with asteroid 1998 KY26 in 2031, after returning samples from (162173) Ryugu to...
    — SpaceX,
    SLC-39A, Kennedy Space Center FL, ~29°N, USA
    NET Q3 — Under US$77.5M NASA CLPS contract, IM 3rd mission using Nova-C, to Reiner Gamma ‘lunar swirl’ 7.5°N, 59.0°W with 4 NASA payloads: Lunar Vertex, CADRE, MoonLIGHT retroreflector, LUSEM; various private payloads.

    Saturday

    — China National Space Administration (CNSA),
    Near-Earth Object (NEO)
    China asteroid sample return mission, to arrive at Kamo’oalewa today to collect at least 100 grams via anchoring-drilling, hover-sampling and touch-and-go techniques; planned to depart Apr 24,...

    Sunday

    — Space Age Publishing Company (SPC),
    Global / Inter-Global
    Jul 5 — Space Age Publishing Company (SPC), Global / Inter-Global: SPC, publisher of Space Calendar and Lunar Enterprise Daily, observes 50 years since inception and looks towards the next 50 years of...
    — International Astronomical Union (IAU), International Society for the Study of the Origins of Life - The International Astrobiology Society (ISSOL),
    Paris, France
    Those in fields of chemistry, biology, planetary science and astrophysics are invited to explore the origins of life and habitability on Earth and beyond. The program will...

    Monday

    — Sun-Earth,
    Global / Inter-Global
    Occurs 07:30 HST / 17:30 UTC; Earth aphelion is the point in its elliptical orbit where it is farthest from the Sun, occurring annually in early July;...

    Saturday

    — International Lunar Observatory Association (ILOA Hawai'i), Space Age Publishing Company (SPC),
    Mountain View CA, USA
    At Computer History Museum with stellar participants from ILOA, IRG, SETI, NASA and more. 5 session themes: 21st Century Solar System Complete Exploration, Funding the Dream, Deep...

    Friday

    Monday

    — National Aeronautics and Space Administration (NASA),
    Global / Inter-Global
    First Human mission to land on Moon in 1969; 1st steps by humans on another World taken by Commander Neil Armstrong and Lunar Module Pilot Buzz Aldrin;...
    — National Aeronautics and Space Administration (NASA),
    Nationwide USA
    First USA spacecraft to successfully land on another planet commemorated today for its accomplishment 50 years ago; originally scheduled for July 4, landing was delayed until this...
    — Purdue University,
    West Lafayette, Indiana
    Purdue University will bestow its newest honor – the Neil Armstrong Space Prize – upon those whose contributions to space in the preceding decade are deemed the...
    — Moon Village Association (MVA),
    Global / Inter-Global
    Celebrating the 1st people walking on the Moon / another celestial body – International Moon Day has been a recognized / endorsed declaration by the United Nations...

    Tuesday

    — National Aeronautics and Space Administration (NASA), Solar System Exploration Research Virtual Institute (SSERVI),
    Moffett Field, Santa Clara County CA, USA
    Hosted by SSERVI Central Team at NASA Ames Research Center, Moffett Field CA, USA; online option available. The Forum will feature in-depth analyses of research targeting human...

    Thursday

    — National Aeronautics and Space Administration (NASA),
    High Earth Orbit (HEO)
    NASA spacecraft in extended mission phase reaches 27th full year / begins 28th year of operations in space; instruments able to detect X-ray sources 100 times fainter...
  • Saturday

    — China National Space Administration (CNSA),
    Wenchang Space Launch Center, Hainan Island, China (19° N)
    NET Aug — CNSA to launch CE-7 mission which is planned to land at Moon South Pole to survey environment and resources with Relay Satellite, Orbiter, Lander...

    Sunday

    — Asia Oceania Geosciences Society (AOGS),
    Fukuoka, Japan
    From 02 to 07 August 2026, a few thousand geoscientists across diverse disciplines will gather at the 23rd annual meeting of the Asia Oceania Geosciences Society at the...

    Wednesday

    Wednesday

    — National Aeronautics and Space Administration (NASA),
    Heliocentric Orbit
    NASA craft surpasses another full year in space today, having launched Aug 12, 2018; probe came within ~6.16M km of the Sun on Dec 24, 2024 which...

    Monday

    Thursday

    — Indian Space Research Organisation (ISRO),
    Moon Orbit
    India orbiter surpasses another full year in lunar polar orbit since reaching the Moon in 2019; Chandrayaan-2 lander and rover were unsuccessful in lunar landing.

    Sunday

    — Indian Space Research Organisation (ISRO),
    Statio Shiv Shakti, 69.373°S 32.319°E, Moon Surface
    Chandrayaan-3 Vikram lander and Pragyan rover celebrated today after successfully landing on Moon in 2023; marking India as the 4th country to land on Moon, and 1st...
    — Small Satellite Conference, others,
    Salt Palace Convention Center, Salt Lake City UT, USA 100 South West Temple, Salt Lake City, UT, United States
    40th Annual Small Satellite Conference expects ~5,000 attendees, will spotlight technologies driving constellation success and celebrate thousands of people whose vision and collaboration have propelled the industry...
    $1000

    Sunday

    — National Aeronautics and Space Administration (NASA),
    Low Earth Orbit (LEO)
    NASA spacecraft surpasses another full year in space today, launched 2012; adding to the understanding of Earth radiation belt environment and its variability.
  • Tuesday

    Sunday

    Monday

    Monday

    — Greater San Antonio Chamber of Commerce,
    San Antonio TX, USA
    Highlighting the role of Texas in the commercial space economy, innovators, investors, contractors and NASA reps will participate in immersive exhibits including lunar bases, launch systems, and...

    Saturday

    — National Aeronautics and Space Administration (NASA),
    Worldwide
    Observed today is 1st planetary defense / asteroid deflection test success: NASA DART crashed into minor-planet moon Dimorphos of asteroid Didymos on this day in 2022, shortening...

    Monday

    — Indian Space Research Organisation (ISRO),
    Low Earth Orbit (LEO)
    Indian Space Research Organisation (ISRO) first dedicated multi-wavelength space observatory surpasses another full year in space today, launched 2015.
  • Thursday

    Sunday

    — World Space Week Association,
    Worldwide
    Celebrating international contributions of space science for betterment of the human condition; Oct 4 is 68th observation of 1st Space mission Sputnik One launched by Soviet Union...

    Monday

    Wednesday

    Saturday

    — International Observe the Moon Night Organization,
    Worldwide
    For observation, appreciation, understanding of the Moon / its connection to planetary science / exploration; 1st quarter Moon is best time due to shallow angle of sunlight...

    Monday

    — National Aeronautics and Space Administration (NASA), Roscosmos State Corporation,
    Mars Orbit
    European Space Agency (ESA) and Roscosmos spacecraft surpasses another full year at Mars, launched 2016; craft continues collecting data on atmosphere, deployed Schiaparelli demonstration lander 19 Oct...

    Tuesday

    Saturday

    — National Aeronautics and Space Administration (NASA),
    Mars Orbit
    NASA spacecraft surpasses another full year in orbit around Mars today, holds record for longest-surviving continually active spacecraft in orbit around a planet other than Earth; launched...

    Sunday

    Monday

  • Sunday

    — China National Space Administration (CNSA),
    Shackleton Crater Ridge, Moon Surface
    NET Nov — CNSA CE-7 mission planned to land at Shackleton Crater Ridge near Moon South Pole region to survey environment and resources with Relay Satellite, Orbiter,...

    Monday

    — International Astronomical Union (IAU), National Astronomical Observatory of Japan (NAOJ),
    Tokyo, Japan
    Coordinating Division Division C Education, Outreach and Heritage The IAU Symposium on Innovative Research and Techniques in Astronomy Communication will take place from November 2 to 6,...

    Friday

    Friday

    — National Aeronautics and Space Administration (NASA),
    Low Earth Orbit (LEO)
    Observing gamma-ray bursts & their afterglows in gamma-ray, X-ray, ultraviolet, optical wavelengths from LEO, multiwavelength craft surpasses another year of operations in space today, launched in 2004.

    Sunday

    Monday

  • Tuesday

    — SpaceX,
    Starbase, 25.9°N, Boca Chica TX, USA
    SpaceX to launch Starship with Venturi Astrolab FLEX C rover from Starbase, Boca Chica TX. Flexible Logistics and Exploration (FLEX-C) rover to launch to Moon South Pole...
    — China National Space Administration (CNSA),
    Statio Tianchuan, 43° N 51.9° W, Moon Surface
    China National Space Administration (CNSA) Chang'E-5 lander at Statio Tianchuan "ship sailing in the Milky Way", Mons Rümker, Oceanus Procellarum, Moon (43° N, 51.9° W), surpasses another full...

    Wednesday

    — European Space Agency (ESA), National Aeronautics and Space Administration (NASA),
    Low Earth Orbit (LEO)
    European Space Agency (ESA) / National Aeronautics and Space Administration (NASA) craft studying sun, surpasses another full year of operations in space today, launched 1995; discovered more...

    Thursday

    — Japan Aerospace Exploration Agency (JAXA),
    Asteroid 98943 Torifune Trajectory
    Japan Aerospace Exploration Agency (JAXA) Hayabusa surpasses another full year in space today; launched Dec 3, 2014, returned samples to Earth in 2020, and now in extended...

    Monday

    — American Geophysical Union (AGU),
    San Francisco CA, USA
    Save the date for future Annual Meetings: December 7-11, 2026 | San Francisco December 13-17, 2027 | Washington, D.C. December 11-15, 2028 | San Diego

    Thursday

    — European Space Agency (ESA),
    Low Earth Orbit (LEO)
    European Space Agency (ESA) craft in Very Eccentric Elliptical LEO studying X-ray emissions, star-forming regions, galaxy clusters, environment of supermassive black holes, mapping dark matter, surpasses next full...

    Monday

    — China National Space Administration (CNSA),
    Guang Han Gong, 44.12°N 19.51°W, Moon Surface
    China National Space Administration (CNSA) spacecraft at Guang Han Gong "Moon Palace", Sinus Iridum / Mare Imbrium, 44.12°N 19.51°W, surpasses another full year on Moon surface, landed...
    — National Aeronautics and Space Administration (NASA),
    Low Earth Orbit (LEO)
    NASA Wide-field Infrared Survey Explorer spacecraft (redubbed Near-Earth Object WISE – NEOWISE) surpasses another full year in space today; launched 2009, went into hibernation February 17, 2011...

    Wednesday

    Saturday

    — European Space Agency (ESA),
    Sun-Earth L2 Lagrange point
    ESA spacecraft surpasses another full year in space today; now in extended mission phase working to map more than 1 billion stars; launched in 2013.

    Friday

    — National Aeronautics and Space Administration (NASA), European Space Agency (ESA), Canadian Space Agency (CSA-ASC),
    Sun-Earth L2 Lagrange point
    NASA (STSci) / ESA / CSA-ASC infrared astronomy telescope surpasses next full year in space since launching on this day via Ariane 5 ECA rocket in 2021.
    — National Aeronautics and Space Administration (NASA),
    Mars Orbit
    ESA spacecraft surpasses next full year in Mars orbit today; will continue to study Mars atmosphere & climate, planet structure, mineralogy, geology, and to search for traces...
  • Friday

    — China National Space Administration (CNSA),
    Wenchang Space Launch Center, Hainan Island, China (19° N)
    NET 2027 — CNSA to launch Long March 5 with Xuntian space telescope from Wenchang Space Launch Center, Hainan Island, China (19° N), China: Launch of Xuntian (Space...
    — Indian Space Research Organisation (ISRO),
    Satish Dhawan Space Center, ~14°N, Sriharikota, India
    NET 2027 — ISRO to launch its Launch Vehicle Mark-3 (LVM3) with Chandrayaan-4 lunar lander from Satish Dhawan Space Center, Sriharikota, India: Planned launch of Chandrayaan-4 mission for Moon...
    — Roscosmos State Corporation,
    Vostochny Cosmodrome, ~52°N, Russia
    NET 2027 — Roscosmos State Corporation, Launch Luna-26, Vostochny Cosmodrome, Russia: Roscosmos hopes to launch the Luna-Resurs O (Luna-Resurs Orbiter) to Moon polar orbit with 14 instruments for...

    Sunday

    Sunday

    — American Astronomical Society (AAS),
    Salt Palace Convention Center, Salt Lake City UT, USA 100 South West Temple, Salt Lake City, UT, United States
    At Salt Palace Convention Center.

    Monday

    — American Institute of Aeronautics and Astronautics (AIAA),
    Hyatt Regency Orlando Orlando, FL, United States
    AIAA SciTech Forum—the premier aerospace R&D event of the year exploring the science, technologies, and capabilities that are transforming aerospace.

    Tuesday

    Wednesday

    — National Aeronautics and Space Administration (NASA),
    Nationwide USA
    Increasing space awareness and education, remembrances and events honor three Apollo 1 crew members lost in 1967 during a launch pad test: Command Pilot Virgil “Gus” Grissom,...

    Thursday

    — National Aeronautics and Space Administration (NASA),
    Nationwide USA
    Educational and ceremonial events held worldwide to advance space technology / education and honor 7 crew members killed in Shuttle accident 28 January 1986: Commander Francis R....

    Sunday

    — National Aeronautics and Space Administration (NASA),
    Nationwide USA
    American Artemis Return to the Moon For Good is underway, Mars attention and planning advancing, Outer Solar System search for life ongoing, and Interstellar craft on outgoing...
  • Monday

    — National Aeronautics and Space Administration (NASA),
    Nationwide USA
    Annual international conferences and events take place to further space exploration efforts in remembrance of Columbia 7 loss in 2003: Commander Richard D. Husband, Mission Specialist Laurel...
    — China National Space Administration (CNSA),
    Mars Orbit
    China Tianwen-1 orbiter reaches 6 full years / begins 7th year of operations in Mars orbit; Lander & Rover touched down ~3 months after this date at...

    Saturday

    — Lunar Calendar,
    China (Zhongguo) / Worldwide
    Lunar New Year 2027 Spring Festival marks the Year of the Goat.

    Tuesday

    — United Arab Emirates Space Agency (UAESA),
    Mars Orbit
    UAE Hope Orbiter, studying Mars atmosphere and climate, reaches 6 full years / enters 7th year in Mars orbit today; launched July 19, 2020 on JAXA H2A...

    Thursday

    — National Aeronautics and Space Administration (NASA),
    Mars Surface
    Mars 2020 Perseverance Rover reaches 5 full years / enters 6th year on Mars surface having landed in Jezero Crater on this day in 2021; it carried...

    Monday

    — Intuitive Machines (IM),
    Near Malapert A Crater, 80.13° S 1.44°E, Moon Surface
    Third annual observation of 1st successful commercial lunar landing on Moon by Intuitive Machines and its IM-1 Nova-C Lander "Odysseus". This mission also marks the USA first...
  • Monday

    — Milky Way Galaxy,
    Highlighting Galaxy awareness by celebrating the Solar System traveling around Milky Way Galaxy Center every ~225 million Earth years, one Galactic Tick happens every 633.7 days; first...
  • Saturday

    — 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...

    Monday

    — 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...

    Sunday

    Saturday

    — National Aeronautics and Space Administration (NASA),
    Low Earth Orbit (LEO)
    NASA spacecraft with 2.4-meter diameter main telescope begins 38th year in space today, launched Apr 24, 1990; could continue operations until 2040s.
    — China National Space Administration (CNSA),
    Earth Trajectory
    China Tianwen-2 asteroid sample return mission planned to depart Kamo’oalewa (2016 HO3) today and return to Earth with least 100 grams of sample, to enter Earth atmosphere...