Parker Solar Probe Marks Another Year in Space

Heliocentric Orbit
Organizer: National Aeronautics and Space Administration (NASA)

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 is ~7 times closer than any prior spacecraft, traveling faster than any other human-made object at ~692,000 km/hr.

Chandrayaan-2 Marks Another Year in Lunar Orbit

Moon Orbit
Organizer: Indian Space Research Organisation (ISRO)

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.

Chandrayaan-3 Commemorated for Moon Landing (2023)

Statio Shiv Shakti, 69.373°S 32.319°E, Moon Surface
Organizer: Indian Space Research Organisation (ISRO)

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 near the Moon South Pole.

40th Annual Small Satellite Conference

Salt Palace Convention Center, Salt Lake City UT, USA 100 South West Temple, Salt Lake City, UT, United States
Organizer: Small Satellite Conference

~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)
Organizer: National Aeronautics and Space Administration (NASA)

NASA spacecraft surpasses another full year in space today, launched 2012; adding to the understanding of Earth radiation belt environment and its variability.

Tentative Term End for Canadian Space Agency President Lisa Campbell

Ottawa, Canada , Canada
Organizer: Canadian Space Agency (CSA-ASC)

Campbell was first appointed in September 2020. She was reappointed for an additional year, 14 Sep 2025 - 14 Sep 2026. It is rare that a President of the Canadian Space Agency serves longer than a one-year term, and Campbell becomes only the third to complete a full five-year term. Past […]

Double Asteroid Redirection Test (DART) Anniversary Observation

Worldwide
Organizer: National Aeronautics and Space Administration (NASA)

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 Dimorphos’ orbital period.

Astrosat Marks Another Year in Space

Low Earth Orbit (LEO)
Organizer:

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

World Space Week

Worldwide
Organizer: World Space Week Association

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 1957; Oct 10 is 58th observation of Outer Space Treaty going into effect 1967.

International Observe the Moon Night 2026

Worldwide
Organizer: International Observe the Moon Night Organization

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 that illuminates details.

ExoMars 2016 Orbiter Marks Another Year in Mars Orbit

Mars Orbit
Organizer:

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 2016 (unsuccessful).

Mars Odyssey Marks Another Year in Mars Orbit

Mars Orbit
Organizer:

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 2001.

NET Nov — Chang’E-7 Attempts Lunar Landing Near Shackleton Crater

Organizer: China National Space Administration (CNSA)

CNSA attempts to land its Chang’E-7 lander near Shackleton Crater, Moon South Pole region; craft launched with Relay Satellite, Orbiter, Lander (Rashid-2 from UAE), Rover, Mini-Flying Probe; lander has national science payloads as well as 6 international instruments integrated: from Egypt, Bahrain, Italy, Russia, Switzerland, Thailand, and the International Lunar […]

NET Nov — BepiColombo, Hermocentric Orbit Insertion at Mercury

Organizer: ESA / JAXA

NET Nov — BepiColombo, Hermocentric Orbit Insertion at Mercury, Mercury Orbit: European Space Agency / JAXA Mercury Planetary Orbiter (MPO) and Mercury Magnetospheric Orbiter (MMO) expected to reach Mercury, achieve polar orbit and spacecraft separation; will map planet, investigate magnetosphere.

IAU Symposium 409: Innovative Research and Techniques in Astronomy Outreach

Tokyo, Japan
Organizer: International Astronomical Union (IAU)

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, 2026, at the National Astronomical Observatory of Japan in Mitaka, Tokyo. The groundbreaking hybrid event will unite experts from astronomy and science communication, […]

IAU Symposium 409: Innovative Research and Techniques in Astronomy Outreach

Tokyo, Japan
Organizer: International Astronomical Union (IAU)

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, 2026, at the National Astronomical Observatory of Japan in Mitaka, Tokyo. The groundbreaking hybrid event will unite experts from astronomy and science communication, […]

Swift Spacecraft Marks Another Year in Space

Low Earth Orbit (LEO)
Organizer:

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.

NET Dec — Launch Starship / Venturi Astrolab FLEX C

Organizer: SpaceX

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 Region, with commercial payloads including the International Lunar Observatory Association's ILO-1 flagship instrument. ILO-1 will be providing Space Age's Space Calendar with weekly […]

Chang’E-5 Marks Another Year on Moon

Statio Tianchuan, 43° N 51.9° W, Moon Surface
Organizer:

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 year on lunar surface today; landed on this day in 2020, with sample return launching from the Moon 2 days later.

Hayabusa 2 Marks Another Year in Space

Asteroid 98943 Torifune Trajectory
Organizer:

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 mission to flyby asteroid 98943 Torifune in 2026 and rendezvous with 1998 KY26 in 2031.

XMM-Newton Marks Another Year in Space

Low Earth Orbit (LEO)
Organizer:

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 year in space today, launched 1999.

Chang’E-3 Lander Marks Another Year on Moon

Guang Han Gong, 44.12°N 19.51°W, Moon Surface
Organizer:

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 2013.

WISE / NEOWISE Marks Another Year in Space

Low Earth Orbit (LEO)
Organizer:

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 and reactivated August 21, 2013.

Gaia Spacecraft Marks Another Year in Space

Sun-Earth L2 Lagrange point
Organizer:

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.

Mars Express Marks Another Year in Mars Orbit

Mars Orbit
Organizer:

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 of water; launched June 2, 2003 and arrived at Mars in Dec 2003.

NET 2027 — Launch Falcon 9 / APEX 1.0 Lunar Lander Mission 1,

Organizer: SpaceX

SpaceX to launch Falcon 9 with APEX 1.0 Lunar Lander Mission 1. Lunar lander built by ispace, Draper (mission lead) and Karman Space & Defense under $73M NASA CLPS to land near Schrödinger Basin, Moon South Pole region with NASA payloads (two seismometers, a drill, a probe, a magnetic sounder, LuSEE-Light […]

NET 2027 — Launch Luna-26

Organizer: Roscosmos State Corporation

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 1 year at 60-80 km altitude for lunar mapping.

NET 2027 — Launch Vehicle Mark-3 (LVM3) / Chandrayaan-4

Organizer: Indian Space Research Organisation (ISRO)

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 landing and sample return up to 3 kg (6.6 lb) from near Statio Shiv Shakti.

NET 2027 — Launch Long March 5 / Xuntian Telescope

Organizer: China National Space Administration (CNSA)

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 Sentinel / Chinese Space Station Telescope ‘Touring the Heavens’) to LEO; will co-orbit with Tiangong Space Station, allowing it to dock periodically; 2-meter […]

2027 AIAA SciTech Forum

Hyatt Regency Orlando Orlando, FL, United States
Organizer: American Institute of Aeronautics and Astronautics (AIAA)

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
Organizer: National Aeronautics and Space Administration (NASA)

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, Senior Pilot Edward H. White and Pilot Roger B. Chaffee.

Challenger STS-51L, 41st Observation

Nationwide USA
Organizer: National Aeronautics and Space Administration (NASA)

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. “Dick” Scobee, Pilot Michael J. Smith, Astronaut Christa McAuliffe (the 1st ‘Teacher in Space’), Mission Specialists Ellison S. Onizuka, Judith A. Resnick and […]

Explorer 1, 69th Observation

Nationwide USA
Organizer: National Aeronautics and Space Administration (NASA)

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 trajectories while first USA satellite launch on this day in 1958 ‘Explorer 1’ is celebrated and remembered.

Columbia STS-107, 24th Observation

Nationwide USA
Organizer: National Aeronautics and Space Administration (NASA)

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 Clark, Payload Specialist Ilan Ramon (the ‘1st Israeli astronaut’) and Astronauts: William C. McCool, Michael P. Anderson, David M. Brown and Kalpana Chawla […]

Lunar New Year

China (Zhongguo) / Worldwide
Organizer:

Lunar New Year 2027 Spring Festival marks the Year of the Goat.

241st Galactic Tick Day

Global / Inter-Global
Organizer:

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 Tick Day was one Tick after October 2nd, 1608 when the first telescope patent was filed.

Pōwehi Day

Statewide Hawai’i, USA
Organizer:

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 released Apr 10, 2019.

Yuri’s Night Celebrations

Worldwide
Organizer: Yuri’s Night

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 12, 1961, and the inaugural launch of the first Space Shuttle on April 12, 1981. We use space to bring the world together, […]

Hubble Space Telescope Marks Another Year in Space

Low Earth Orbit (LEO)
Organizer: National Aeronautics and Space Administration (NASA)

NASA spacecraft with 2.4-meter diameter main telescope begins 38th year in space today, launched Apr 24, 1990; could continue operations until 2040s.

Tianwen-2 Departs Kamo’oalewa (2016 HO3)

Earth Trajectory
Organizer: China National Space Administration (CNSA)

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 on Nov 29, 2027.