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Today
    • — USA Congress,
    Nationwide USA

    John F. Kennedy 1st Moon Speech

    NASA Artemis program to land 1st Woman and Person of Color on Moon is well underway as today is recognized ...
    • — Lunar Calendar,
    Worldwide

    Islamic New Year 1449 AH

    New Year 1 Muharram (1st day) to begin at sunset on Jun 6; if young New Moon is not visible ...
    • — Moon Village Association (MVA),
    Global / Inter-Global

    International Moon Day (Annual)

    Celebrating the 1st people walking on the Moon / another celestial body – International Moon Day has been a recognized ...
    — National Aeronautics and Space Administration (NASA),
    Global / Inter-Global

    Apollo 11, 58th Observation

    First Human mission to land on Moon in 1969; 1st steps by humans on another World taken by Commander Neil ...
    • — International Astronomical Union (IAU),
    Rome, Italy

    IAUGA2027: IAU General Assembly

    International Astronomical Union will post a dedicated website "soon". The General Assembly is held every 3 years for astronomers worldwide ...
    — National Aeronautics and Space Administration (NASA),
    Heliocentric Orbit

    Parker Solar Probe Begins Next Year in Space

    NASA craft surpasses another full year in space today, having launched Aug 12, 2018; probe came within ~6.16M km of ...
    — National Aeronautics and Space Administration (NASA),
    Jupiter Greek camp at Lagrangian point L4

    Lucy Mission Flyby of 3548 Eurybates / Queta

    NASA mission to encounter 11 asteroids including a main belt and 7 Jupiter Trojans to come within 1,000 km of ...
    — Small Satellite Conference, others,
    Salt Palace Convention Center, Salt Lake City UT, USA 100 South West Temple, Salt Lake City, UT, United States

    41st Annual Small Satellite Conference

    $1000
    — Indian Space Research Organisation (ISRO),
    Moon Orbit

    Chandrayaan-2 Begins Next Year in Lunar Orbit

    India orbiter surpasses another full year in lunar polar orbit since reaching the Moon in 2019; Chandrayaan-2 lander and rover ...
    — Indian Space Research Organisation (ISRO),
    Statio Shiv Shakti, 69.373°S 32.319°E, Moon Surface

    Chandrayaan-3 Commemorated for Moon Landing (2023)

    Chandrayaan-3 Vikram lander and Pragyan rover celebrated today after successfully landing on Moon in 2023; marking India as the 4th ...
    — National Aeronautics and Space Administration (NASA),
    Low Earth Orbit (LEO)

    Van Allen Probes Mark Another Year in Space

    NASA spacecraft surpasses another full year in space today, launched 2012; adding to the understanding of Earth radiation belt environment ...
    • — National Aeronautics and Space Administration (NASA),
    Jupiter Greek camp at Lagrangian point L4

    Lucy Mission Flyby of 15094 Polymele

    NASA mission to encounter 11 asteroids including a main belt and 7 Jupiter Trojans to come within 415 km of ...
    — Indian Space Research Organisation (ISRO),
    Low Earth Orbit (LEO)

    Astrosat Begins Next Year in Space

    Indian Space Research Organisation (ISRO) first dedicated multi-wavelength space observatory surpasses another full year in space today, launched 2015.
    • — World Space Week Association,
    Worldwide

    World Space Week

    Celebrating international contributions of space science for betterment of the human condition; Oct 4 is 68th observation of 1st Space ...
    — National Aeronautics and Space Administration (NASA),
    Jupiter Greek camp at Lagrangian point L4

    Lucy Mission Reaches 6 Full Years in Space

    NASA craft reaches 6 full years in Space, about mid-way through planned 12-year mission to encounter 11 different asteroids.
    — European Space Agency (ESA), Roscosmos State Corporation,
    Mars Orbit

    ExoMars 2016 Orbiter Begins Next Year in Mars Orbit

    European Space Agency (ESA) and Roscosmos spacecraft surpasses another full year at Mars, launched 2016; craft continues collecting data on ...
    — National Aeronautics and Space Administration (NASA),
    Mars Orbit

    Mars Odyssey Begins Next Year in Mars Orbit

    NASA spacecraft surpasses another full year in orbit around Mars today, holds record for longest-surviving continually active spacecraft in orbit ...
    • — National Aeronautics and Space Administration (NASA),
    Low Earth Orbit (LEO)

    Swift Spacecraft Begins Next Year in Space

    Observing gamma-ray bursts & their afterglows in gamma-ray, X-ray, ultraviolet, optical wavelengths from LEO, multiwavelength craft surpasses another year of ...
    • — China National Space Administration (CNSA),
    Statio Tianchuan, 43° N 51.9° W, Moon Surface

    Chang’E-5 Begins Next Year on Moon

    China National Space Administration (CNSA) Chang'E-5 lander at Statio Tianchuan "ship sailing in the Milky Way", Mons Rümker, Oceanus Procellarum, ...
    — Japan Aerospace Exploration Agency (JAXA),
    Earth Trajectory

    NET Dec — Hayabusa 2, First Earth Flyby

    ☆ NET Dec — JAXA Hayabusa 2 mission to perform first flyby Earth today on way to rendezvous with asteroid ...
    — Japan Aerospace Exploration Agency (JAXA),
    Asteroid 98943 Torifune Trajectory

    Hayabusa 2 Begins Next Year in Space

    Japan Aerospace Exploration Agency (JAXA) Hayabusa surpasses another full year in space today; launched Dec 3, 2014, returned samples to ...
    — European Space Agency (ESA),
    Low Earth Orbit (LEO)

    XMM-Newton Begins Next Year in Space

    European Space Agency (ESA) craft in Very Eccentric Elliptical LEO studying X-ray emissions, star-forming regions, galaxy clusters, environment of supermassive black ...
    — American Geophysical Union (AGU),
    Washington DC, USA

    AGU 2027 Annual Meeting

    Save the date for future Annual Meetings: December 13-17, 2027 | Washington, D.C. December 11-15, 2028 | San Diego
    — China National Space Administration (CNSA),
    Guang Han Gong, 44.12°N 19.51°W, Moon Surface

    Chang’E-3 Lander Begins Next Year on Moon

    China National Space Administration (CNSA) spacecraft at Guang Han Gong "Moon Palace", Sinus Iridum / Mare Imbrium, 44.12°N 19.51°W, surpasses ...
    — National Aeronautics and Space Administration (NASA),
    Low Earth Orbit (LEO)

    WISE / NEOWISE Begins Next Year in Space

    NASA Wide-field Infrared Survey Explorer spacecraft (redubbed Near-Earth Object WISE – NEOWISE) surpasses another full year in space today; launched ...
    — European Space Agency (ESA),
    Sun-Earth L2 Lagrange point

    Gaia Spacecraft Begins Next Year in Space

    ESA spacecraft surpasses another full year in space today; now in extended mission phase working to map more than 1 ...
    — European Space Agency (ESA),
    Mars Orbit

    Mars Express Begins Next Year in Mars Orbit

    ESA spacecraft surpasses next full year in Mars orbit today; will continue to study Mars atmosphere & climate, planet structure, ...
    • — China National Space Administration (CNSA),
    Wenchang Space Launch Center, Hainan Island, China (19° N)

    NET 2028 — Launch Tianwen-3 Mars Sample Return Mission

    NET 2028 — China expects to launch Tianwen-3 Mars Sample Return Mission to Mars by this date, to deliver samples ...
    — Roscosmos State Corporation,
    Vostochny Cosmodrome, Russia

    NET 2028 — Launch Angara A5 / Luna-27

    NET 2028 — Roscosmos planning to launch Angara A5 with Luna-27 (Luna-Resurs 1) lander to Moon South Pole to target ...
    — China National Space Administration (CNSA),
    Wenchang Space Launch Center, Hainan Island, China (19° N)

    NET 2028 — Launch Long March 10 / Human Moon Flyby

    NET 2028 — Tentative date for China's first crewed lunar flyby using super-heavy lift Long March 10 rocket and crew ...
    — American Institute of Aeronautics and Astronautics (AIAA),
    Hyatt Regency Orlando Orlando, FL, United States

    2028 AIAA SciTech Forum

    AIAA SciTech Forum—the premier aerospace R&D event of the year exploring the science, technologies, and capabilities that are transforming aerospace.
    — Lunar Calendar,
    China (Zhongguo) / Worldwide

    Lunar New Year

    Lunar New Year 2028 Spring Festival marks the Year of the Monkey.
    — National Aeronautics and Space Administration (NASA),
    Nationwide USA

    Apollo 1, 61st Observation

    Increasing space awareness and education, remembrances and events honor three Apollo 1 crew members lost in 1967 during a launch ...
    — National Aeronautics and Space Administration (NASA),
    Nationwide USA

    Challenger STS-51L, 42nd Observation

    Educational and ceremonial events held worldwide to advance space technology / education and honor 7 crew members killed in Shuttle ...
    — National Aeronautics and Space Administration (NASA),
    Nationwide USA

    Explorer 1, 70th Observation

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

    Columbia STS-107, 25th Observation

    Annual international conferences and events take place to further space exploration efforts in remembrance of Columbia 7 loss in 2003: ...
    • — Indian Space Research Organisation (ISRO),
    Satish Dhawan Space Center, Sriharikota, India

    Launch Vehicle Mark-3 (LVM3) / Shukrayaan-1 Mission

    India planning to launch its first mission, Shukrayaan-1, to Venus to study the surface and atmosphere of Venus; planned to ...
    • — Hawai'i, USA,
    Statewide Hawai’i, USA

    Pōwehi Day

    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,
    Worldwide

    Yuri’s Night Celebrations

    Launching parties around the world every year on or around April 12th, in commemoration of Yuri Gagarin becoming the first ...
    — National Aeronautics and Space Administration (NASA),
    Jupiter Greek camp at Lagrangian point L4

    Lucy Spacecraft to Fly By Asteroid 11351 Leucus

    NASA's Lucy mission, to encounter 11 asteroids including a main belt and 7 Jupiter Trojans, planned to come within 1,000 ...
    — National Aeronautics and Space Administration (NASA),
    Low Earth Orbit (LEO)

    Hubble Space Telescope Begins Next Year in Space

    NASA spacecraft with 2.4-meter diameter main telescope begins 39th year in space today, launched Apr 24, 1990; could continue operations ...
    — China National Space Administration (CNSA),
    China (Zhongguo)

    National Day of Space Flight

    Commemorating the launch of China’s first satellite, Dongfanghong-1 on April 24, 1970.
    • — International Space Day,
    Worldwide

    International Space Day

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

    John F. Kennedy 1st Moon Speech

    NASA Artemis program to land 1st Woman and Person of Color on Moon is well underway as today is recognized ...
    • — Japan Aerospace Exploration Agency (JAXA),
    Earth Trajectory

    NET Jun — Hayabusa 2, Second Earth Flyby

    ☆ NET Jun — JAXA Hayabusa 2 mission to perform second flyby Earth today on way to rendezvous with asteroid ...
    — American Astronomical Society (AAS),
    Madison WI, USA

    252nd Meeting of the AAS

    At Monona Terrace.
    • — China National Space Administration (CNSA),
    Wenchang Space Launch Center, Hainan Island, China (19° N)

    NET Q3 2028 — Launch Long March 5 / Chang’E-8

    NET Q3 2028 — Chang'E-8 planned to land at Moon South Pole with 10 international projects to conduct in-situ resource ...
    — Moon Village Association (MVA),
    Global / Inter-Global

    International Moon Day (Annual)

    Celebrating the 1st people walking on the Moon / another celestial body – International Moon Day has been a recognized ...
    — National Aeronautics and Space Administration (NASA),
    Global / Inter-Global

    Apollo 11, 59th Observation

    First Human mission to land on Moon in 1969; 1st steps by humans on another World taken by Commander Neil ...
    • — National Aeronautics and Space Administration (NASA),
    Heliocentric Orbit

    Parker Solar Probe Begins Next Year in Space

    NASA craft surpasses another full year in space today, having launched Aug 12, 2018; probe came within ~6.16M km of ...
    — Small Satellite Conference, others,
    Salt Palace Convention Center, Salt Lake City UT, USA 100 South West Temple, Salt Lake City, UT, United States

    42nd Annual Small Satellite Conference

    $1000
    — Indian Space Research Organisation (ISRO),
    Statio Shiv Shakti, 69.373°S 32.319°E, Moon Surface

    Chandrayaan-3 Commemorated for Moon Landing (2023)

    Chandrayaan-3 Vikram lander and Pragyan rover celebrated today after successfully landing on Moon in 2023; marking India as the 4th ...
    — National Aeronautics and Space Administration (NASA),
    Low Earth Orbit (LEO)

    Van Allen Probes Mark Another Year in Space

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

    Astrosat Begins Next Year in Space

    Indian Space Research Organisation (ISRO) first dedicated multi-wavelength space observatory surpasses another full year in space today, launched 2015.
    • — World Space Week Association,
    Worldwide

    World Space Week

    Celebrating international contributions of space science for betterment of the human condition; Oct 4 is 68th observation of 1st Space ...
    — European Space Agency (ESA), Roscosmos State Corporation,
    Mars Orbit

    ExoMars 2016 Orbiter Begins Next Year in Mars Orbit

    European Space Agency (ESA) and Roscosmos spacecraft surpasses another full year at Mars, launched 2016; craft continues collecting data on ...
    — National Aeronautics and Space Administration (NASA),
    Mars Orbit

    Mars Odyssey Begins Next Year in Mars Orbit

    NASA spacecraft surpasses another full year in orbit around Mars today, holds record for longest-surviving continually active spacecraft in orbit ...
    • — National Aeronautics and Space Administration (NASA),
    Jupiter Greek camp at Lagrangian point L4

    Lucy Spacecraft to Fly by Asteroid 21900 Orus

    NASA Lucy mission, to encounter 11 asteroids including a main belt and 7 Jupiter Trojans, to come within 1,000 km ...
    — National Aeronautics and Space Administration (NASA),
    Low Earth Orbit (LEO)

    Swift Spacecraft Begins Next Year in Space

    Observing gamma-ray bursts & their afterglows in gamma-ray, X-ray, ultraviolet, optical wavelengths from LEO, multiwavelength craft surpasses another year of ...
    — Milky Way Galaxy,

    242nd Galactic Tick Day

    ☆ Nov 24 — 242nd Galactic Tick Day, Milky Way Galaxy: Highlighting Galaxy awareness by celebrating the Solar System traveling around Milky ...
    • — China National Space Administration (CNSA),
    Statio Tianchuan, 43° N 51.9° W, Moon Surface

    Chang’E-5 Begins Next Year on Moon

    China National Space Administration (CNSA) Chang'E-5 lander at Statio Tianchuan "ship sailing in the Milky Way", Mons Rümker, Oceanus Procellarum, ...
    — Japan Aerospace Exploration Agency (JAXA),
    Asteroid 98943 Torifune Trajectory

    Hayabusa 2 Begins Next Year in Space

    Japan Aerospace Exploration Agency (JAXA) Hayabusa surpasses another full year in space today; launched Dec 3, 2014, returned samples to ...
    — European Space Agency (ESA),
    Low Earth Orbit (LEO)

    XMM-Newton Begins Next Year in Space

    European Space Agency (ESA) craft in Very Eccentric Elliptical LEO studying X-ray emissions, star-forming regions, galaxy clusters, environment of supermassive black ...
    — American Geophysical Union (AGU),
    San Diego CA, USA

    AGU 2028 Annual Meeting

    Save the date for future Annual Meetings: December 11-15, 2028 | San Diego
    — China National Space Administration (CNSA),
    Guang Han Gong, 44.12°N 19.51°W, Moon Surface

    Chang’E-3 Lander Begins Next Year on Moon

    China National Space Administration (CNSA) spacecraft at Guang Han Gong "Moon Palace", Sinus Iridum / Mare Imbrium, 44.12°N 19.51°W, surpasses ...
    — National Aeronautics and Space Administration (NASA),
    Low Earth Orbit (LEO)

    WISE / NEOWISE Begins Next Year in Space

    NASA Wide-field Infrared Survey Explorer spacecraft (redubbed Near-Earth Object WISE – NEOWISE) surpasses another full year in space today; launched ...
    — European Space Agency (ESA),
    Sun-Earth L2 Lagrange point

    Gaia Spacecraft Begins Next Year in Space

    ESA spacecraft surpasses another full year in space today; now in extended mission phase working to map more than 1 ...
    — National Aeronautics and Space Administration (NASA), European Space Agency (ESA), Canadian Space Agency (CSA-ASC),
    Sun-Earth L2 Lagrange point

    James Webb Space Telescope Begins Next Year in Space

    NASA (STSci) / ESA / CSA-ASC infrared astronomy telescope surpasses next full year in space since launching on this day ...
    — European Space Agency (ESA),
    Mars Orbit

    Mars Express Begins Next Year in Mars Orbit

    ESA spacecraft surpasses next full year in Mars orbit today; will continue to study Mars atmosphere & climate, planet structure, ...
    • — Indian Space Research Organisation (ISRO),
    Satish Dhawan Space Center, Sriharikota, India

    NET 2029 — Launch Soorya / Human Moon Mission

    NET 2029 — Potential date for India 1st crewed mission to cislunar space with using Soorya rocket.
    — Roscosmos State Corporation,
    Vostochny Cosmodrome, Russia

    NET 2029 — Launch Luna-28

    NET 2029 — Roscosmos hoping to launch Launch Luna-28 (Luna-Resurs 2) to the Moon South Pole region for sample return ...
    — China National Space Administration (CNSA),
    Wenchang Space Launch Center, Hainan Island, China (19° N)

    NET 2029 — Launch Tianwen-3 to Jupiter

    NET 2029 — China planning to launch its first probe to Jupiter this year with the Tianwen-3.
    — European Space Agency (ESA),
    Sun-Earth L2 Lagrange point

    NET 2029 — End of Euclid Nominal Mission

    NET 2029 — Scheduled end of European Space Agency Euclid mission which is measuring accelerated expansion of Universe, aiding in ...
    — China National Space Administration (CNSA),
    Wenchang Space Launch Center, Hainan Island, China (19° N)

    NET 2029 — Launch Long March 10 / Human Moon Landing

    NET 2029 — Tentative date for China's crewed spaceflight program to have first of its multiple human Moon missions to ...
    — National Aeronautics and Space Administration (NASA),
    Nationwide USA

    Apollo 1, 62nd Observation

    Increasing space awareness and education, remembrances and events honor three Apollo 1 crew members lost in 1967 during a launch ...
    — National Aeronautics and Space Administration (NASA),
    Nationwide USA

    Challenger STS-51L, 43rd Observation

    Educational and ceremonial events held worldwide to advance space technology / education and honor 7 crew members killed in Shuttle ...
    • — National Aeronautics and Space Administration (NASA),
    Nationwide USA

    Columbia STS-107, 26th Observation

    Annual international conferences and events take place to further space exploration efforts in remembrance of Columbia 7 loss in 2003: ...
    — Lunar Calendar,
    China (Zhongguo) / Worldwide

    Lunar New Year

    Lunar New Year 2029 Spring Festival marks the Year of the Rooster.
    • — Hawai'i, USA,
    Statewide Hawai’i, USA

    Pōwehi Day

    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,
    Worldwide

    Yuri’s Night Celebrations

    Launching parties around the world every year on or around April 12th, in commemoration of Yuri Gagarin becoming the first ...
    — Asteroid 99942 Apophis,
    Medium Earth Orbit (MEO)

    Asteroid 99942 Apophis to Fly by Earth

    On this day, which happens to be a Friday, 370-meter diameter asteroid (previously known as 2004 MN4) will narrowly miss ...
    — National Aeronautics and Space Administration (NASA),
    Asteroid 99942 Apophis Orbit

    OSIRIS-APEX to Rendezvous with Asteroid 99942 Apophis

    OSIRIS-APophis EXplorer (OSIRIS-APEX) is planned rendezvous with and orbit asteroid Apophis starting today for 9 months following the asteroid’s close ...
    — China National Space Administration (CNSA),
    China (Zhongguo)

    National Day of Space Flight

    Commemorating the launch of China’s first satellite, Dongfanghong-1 on April 24, 1970.
    • — International Space Day,
    Worldwide

    International Space Day

    First Friday in May, events and presentations to promote STEM education and inspire people to continue the work of Space ...
    • — Moon Village Association (MVA),
    Global / Inter-Global

    International Moon Day (Annual)

    Celebrating the 1st people walking on the Moon / another celestial body – International Moon Day has been a recognized ...
    — National Aeronautics and Space Administration (NASA),
    Global / Inter-Global

    Apollo 11, 60th Observation

    First Human mission to land on Moon in 1969; 1st steps by humans on another World taken by Commander Neil ...
    • — National Aeronautics and Space Administration (NASA),
    Heliocentric Orbit

    Parker Solar Probe Begins Next Year in Space

    NASA craft surpasses another full year in space today, having launched Aug 12, 2018; probe came within ~6.16M km of ...
    — Small Satellite Conference, others,
    Salt Palace Convention Center, Salt Lake City UT, USA 100 South West Temple, Salt Lake City, UT, United States

    43rd Annual Small Satellite Conference

    $1000
    — Indian Space Research Organisation (ISRO),
    Statio Shiv Shakti, 69.373°S 32.319°E, Moon Surface

    Chandrayaan-3 Commemorated for Moon Landing (2023)

    Chandrayaan-3 Vikram lander and Pragyan rover celebrated today after successfully landing on Moon in 2023; marking India as the 4th ...
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