World Space Week

Organizer: 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 ...

ExoMars 2016 Orbiter Marks Another Year in Mars Orbit

Organizer: European Space Agency (ESA), 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 ...

Mars Odyssey Marks Another Year in Mars Orbit

Organizer: 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 ...

Swift Spacecraft Marks Another Year in Space

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 ...

Chang’E-5 Marks Another Year on Moon

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, ...

Hayabusa 2 Marks Another Year in Space

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

XMM-Newton Marks Another Year in Space

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 ...

Chang’E-3 Lander Marks Another Year on Moon

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 ...

WISE / NEOWISE Marks Another Year in Space

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 ...

NET 2030 — Launch Angara A5 / Luna-29

Organizer: Roscosmos State Corporation
Vostochny Cosmodrome, Russia
NET 2030 — Roscosmos hoping to launch Angara A5 with Luna-29 (Luna-Resurs 3) Moon South Pole lander and rover; mission ...

NET 2030 — Launch Millimetron (Spektr-M)

Organizer: Roscosmos State Corporation
TBD
NET 2030 — Russia hopes to launch Millimetron (Spektr-M) space observatory with a diameter of 10 meters to Sun-Earth L2 ...

255th Meeting of the AAS

Organizer: American Astronomical Society (AAS)
National Harbor MD, USA
At Gaylord National Resort & Convention Center.

Pōwehi Day

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 ...

Europa Clipper to Insert into Jupiter Orbit

Organizer: National Aeronautics and Space Administration (NASA)
Jupiter Orbit
Europa Clipper mission to insert into Jupiter orbit on this day to study Galileo moon Europa through a series of ...

Yuri’s Night Celebrations

Organizer: Yuri's Night
Worldwide
Launching parties around the world every year on or around April 12th, in commemoration of Yuri Gagarin becoming the first ...

National Day of Space Flight

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

International Space Day

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

John F. Kennedy 1st Moon Speech

Nationwide USA
NASA Artemis program to land 1st Woman and Person of Color on Moon is well underway as today is recognized ...

International Moon Day (Annual)

Organizer: 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 ...

Viking 1 Mars Lander 54th Landing Observation Anniversary

Organizer: National Aeronautics and Space Administration (NASA)
Nationwide USA
First USA spacecraft to successfully land on another planet commemorated today for its accomplishment 54 years ago; originally scheduled for ...

Parker Solar Probe Marks Another Year in Space

Organizer: 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 ...

Chandrayaan-3 Commemorated for Moon Landing (2023)

Organizer: 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 ...

Van Allen Probes Mark Another Year in Space

Organizer: 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 ...

Astrosat Marks Another Year in Space

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

Lucy Spacecraft 3rd Earth Flyby (660 km)

Organizer: National Aeronautics and Space Administration (NASA)
Jupiter Trajectory
NASA mission to encounter 11 asteroids, including a main belt and 7 Jupiter Trojans, to perform Earth flyby / gravity ...

NET 2031 — Launch Luna-30 Lander

Organizer: Roscosmos State Corporation
Vostochny Cosmodrome, Russia
Roscosmos State Corporation planning to launch Launch Luna-30 lander to deliver a reusable cargo delivery spacecraft with supplies for human ...

NET 2031 — Launch Ariane 6-4 / Argonaut

Organizer: European Space Agency (ESA)
Launch Area 4, Guiana Space Centre, French Guiana
European Space Agency planning to launch the Argonaut Lunar Descent Element -- lunar lander built by Thales Alenia Space to the ...

Parker Solar Probe Marks 13th Full Year in Space

Organizer: 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 ...

243rd Galactic Tick Day

Organizer: Milky Way Galaxy
Highlighting Galaxy awareness by celebrating the Solar System traveling around Milky Way Galaxy Center every ~225 million Earth years, one ...

Transit of Mercury

Organizer: Sun-Mercury
Global / Inter-Global
Mercury to pass directly between Earth and Sun; observers see distant planet as small dot gliding slowly across face of ...

NET 2033 — Launch Long March 9 Test Flight

Organizer: China National Space Administration (CNSA)
Wenchang Space Launch Center, Hainan Island, China (19° N)
Tentative date for China to test launch its next-gen rocket intended to carry people and cargo to the Moon.

NET 2033 — Launch Luna-31

Organizer: Roscosmos State Corporation
Vostochny Cosmodrome, Russia
Roscosmos hoping to launch lander to deliver a heavy lunar rover weighing up to 5,000 kg, capable of mining / ...

Lucy to Flyby Asteroids 617 Patroclus and Menoetius

Organizer: National Aeronautics and Space Administration (NASA)
Jupiter Trojan camp at L5
NASA Lucy mission to come within 1,000 km of 113-km diameter 617 Patroclus and 104-km diameter Menoetius, p-type binary asteroids; ...

NET 2035 — Launch Luna-32

Organizer: Roscosmos State Corporation
Vostochny Cosmodrome, Russia
Roscosmos hopes to launch Luna-32 to deliver heavy modules weighing up to 5,000 kg for the construction of the International Lunar ...

NET 2035 — Launch Luna-33

Organizer: Roscosmos State Corporation
Vostochny Cosmodrome, Russia
Roscosmos hopes to launch Luna-33 orbiter to be used for communication and navigation for Human Moon Missions and lunar base.

Tianwen-2 to Rendezvous with Comet 311/P PanSTARRS

Organizer: China National Space Administration (CNSA)
Comet 311/P PanSTARRS Orbit
China asteroid sample return mission, having returned at least 100 grams from Kamo’oalewa (2016 HO3), to rendezvous with and begin ...

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