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45th Observation of STS-1 Columbia Flight

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 ...

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 ...

Yuri’s Night Celebrations

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

ASCE Earth & Space 2026 Conference

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

Lyrids Meteor Shower Peak

Worldwide
Best seen from Northern Hemisphere, with a lower hourly rate in the Southern Hemisphere, Lyrids seem to stream from the ...

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 ...

Asia-Pacific Regional IAU Meeting (APRIM 2026)

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

2026 ASCEND Conference

Washington DC, USA
Accelerating Space Commerce, Exploration, and New Discovery

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 ...

32nd AIAA / CEAS Aeroacoustics Conference 2026

Brussels, Belgium
Organized by the von Karman Institute for Fluid Dynamics, the 32nd AIAA/CEAS Aeroacoustics Conference (Aeroacoustics 2026) is the premier international ...
€475

International Space Summit Africa

Pretoria, South Africa
Expecting 300 exhibitors, 500 companies, 25 countries, 3,000 B2B (business to business) meetings

Islamic New Year 1448 AH

Worldwide
New Year 1 Muharram (1st day) to begin at sunset on Jun 16; if young New Moon is not visible ...

Space Age Publishing Company (SPC) 50th Observation

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 ...

International Moon Day (Annual)

Global / Inter-Global
Celebrating the 1st people walking on the Moon / another celestial body – International Moon Day has been a recognized ...

Apollo 11, 57th Observation

Global / Inter-Global
First Human mission to land on Moon in 1969; 1st steps by humans on another World taken by Commander Neil ...

40th Annual Small Satellite Conference

Salt Palace Convention Center, Salt Lake City UT, USA 100 South West Temple, Salt Lake City, UT, United States
~5,000 attendees expected; student discount on registration fee; winners of student competition receive up to US$10,000
$1000

Van Allen Probes Mark Another Year in Space

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.

World Space Week

Worldwide
Celebrating international contributions of space science for betterment of the human condition; Oct 4 is 68th observation of 1st Space ...

NET Nov — Chang’E-7 to land on Moon

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 ...

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 ...

AGU 2026 Annual Meeting

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 ...

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 2027 — Launch Luna-26

Vostochny Cosmodrome, Russia
NET 2027 — Roscosmos State Corporation, Launch Luna-26, Vostochny Cosmodrome, Russia: Roscosmos hopes to launch the Luna-Resurs O (Luna-Resurs Orbiter) to ...

249th Meeting of the 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.

2027 AIAA SciTech Forum

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.

Apollo 1, 60th Observation

Nationwide USA
Increasing space awareness and education, remembrances and events honor three Apollo 1 crew members lost in 1967 during a launch ...

Challenger STS-51L, 41st Observation

Nationwide USA
Educational and ceremonial events held worldwide to advance space technology / education and honor 7 crew members killed in Shuttle ...

Explorer 1, 69th Observation

Nationwide USA
American Artemis Return to the Moon For Good is underway, Mars attention and planning advancing, Outer Solar System search for ...

Columbia STS-107, 24th Observation

Nationwide USA
Annual international conferences and events take place to further space exploration efforts in remembrance of Columbia 7 loss in 2003: ...

Lunar New Year

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

241st Galactic Tick Day

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

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 ...

Yuri’s Night Celebrations

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 ...

Islamic New Year 1449 AH

Worldwide
New Year 1 Muharram (1st day) to begin at sunset on Jun 6; if young New Moon is not visible ...

International Moon Day (Annual)

Global / Inter-Global
Celebrating the 1st people walking on the Moon / another celestial body – International Moon Day has been a recognized ...

Apollo 11, 58th Observation

Global / Inter-Global
First Human mission to land on Moon in 1969; 1st steps by humans on another World taken by Commander Neil ...

IAUGA2027: IAU General Assembly

Rome, Italy
International Astronomical Union will post a dedicated website "soon". The General Assembly is held every 3 years for astronomers worldwide ...

Van Allen Probes Mark Another Year in Space

Low Earth Orbit (LEO)
NASA spacecraft surpasses another full year in space today, launched 2012; adding to the understanding of Earth radiation belt environment ...

Lucy Mission Flyby of 15094 Polymele

Jupiter Greek camp at Lagrangian point L4
NASA mission to encounter 11 asteroids including a main belt and 7 Jupiter Trojans to come within 415 km of ...

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.

World Space Week

Worldwide
Celebrating international contributions of space science for betterment of the human condition; Oct 4 is 68th observation of 1st Space ...

Lucy Mission Reaches 6 Full Years in Space

Jupiter Greek camp at Lagrangian point L4
NASA craft reaches 6 full years in Space, about mid-way through planned 12-year mission to encounter 11 different asteroids.

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 ...

AGU 2027 Annual Meeting

Washington DC, USA
Save the date for future Annual Meetings: December 13-17, 2027 | Washington, D.C. December 11-15, 2028 | San Diego
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