• National Aeronautics and Space Administration (NASA)
    SLC-39B, Kennedy Space Center FL, USA

    NET Feb — Launch SLS / Orion / Artemis 2

    Planned 1st fully-crewed Orion Moon flight to last 10-14 days with 3 USA and 1 Canada Astronaut: Commander Reid Wiseman, Pilot Victor Glover, Mission Specialists Christina Koch and Jeremy Hansen; mission will also deploy numerous CubeSats.

    National Aeronautics and Space Administration (NASA)
    Nationwide USA

    Columbia STS-107, 23rd Observation

    Annual international conferences and events take place to further space exploration efforts in remembrance of Columbia 7 loss: 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 (the ‘1st […]

    Office for Space Technology & Industry Singapore (OSTIn), Singapore Economic Development Board (EDB Singapore)
    Marina Bay Sands / Sands Expo and Convention Centre , Singapore

    Singapore Space Summit 2026

    Space Summit 2026 is a space-focused conference with a boutique exhibition, highlighting trends, challenges and opportunities in the global space industry. As the only space show in Singapore endorsed by the Economic Development Board (EDB), the Office for Space Technology & Industry (OSTIn), supported by Singapore’s Defence Sciences and Technology […]

    International Association of Geomorphologists, ANZGG, University of Canterbury
    Christchurch, New Zealand

    11th IAG International Conference on Geomorphology

    Includes track on planetary geomorphology for all Solar System bodies and exoplanets

    Gemini Observatory, National Optical-Infrared Astronomy Research Laboratory (NOIRLab), Maunakea Observatories
    Statewide Hawai’i, USA

    Journey Through the Universe

    Annual event in its 22nd year, inviting STEAM professionals and Maunakea Observatories staff to participate in 200+ Hawai'i classroom visits, career panels, and community events.

    Civial Aviation Authority of Singapore (CAAS), Changi Airport Group, Singapore Exhibition and Convention Bureau
    Changi Exhibition Centre 9 Aviation Park Rd, Singapore, Singapore

    2026 Singapore Airshow (10th Edition)

    Singapore Airshow is one of the world’s most influential international aerospace and defence exhibitions, providing a platform for stakeholders to forge strategic alliances and collaborate to shape the future of the global aviation industry. The event offers a unique platform for industry thought leadership through its strategic forums, and co-located […]

    Lunar Calendar
    China (Zhongguo) / Worldwide

    Lunar New Year

    Lunar New Year 2026 Spring Festival marks the Year of the Horse.

    International Academy of Astronautics (IAA), University of Texas at Austin (UT), Strauss Center for International Security and Law

    12th Annual Space Traffic Conference: Operational Assurance for All

    Sponsored by the Space Security, Safety, and Sustainability (SSSS) Program at The University of Texas at Austin’s (UT) Strauss Center for International Security and Law in partnership with the International Academy of Astronautics (IAA). Experts from all over the world gathered to discuss and exchange knowledge on Space Traffic. As the title […]

  • Lunar and Planetary Institute (LPI), Universities Space Research Association (USRA)
    The Woodlands TX, USA

    57th Lunar and Planetary Science Conference

    Expecting 2,000+ for the latest science, research, discoveries; at Waterway Marriott and online

    $400 – $700
  • National Aeronautics and Space Administration (NASA)
    Nationwide USA

    45th Observation of STS-1 Columbia Flight

    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.

    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 name Pōwehi; imaged in April 2017 and released Apr 10, 2019.

    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 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, […]

    American Society of Civil Engineers (ASCE), Texas A&M University
    College Station TX, USA

    ASCE Earth & Space 2026 Conference

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

    Comet C/1861 G1 (Thatcher)
    Worldwide

    Lyrids Meteor Shower Peak

    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 debris trail of Comet C/1861 G1 Thatcher, which has a period of 415 years. Can be "fireball" bright but usually lack persistent trains, […]

    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 37th year in space today, launched Apr 24, 1990; could continue operations until 2040s.

    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 explorers; originally began as ‘National Space Day’ in 1997 by Lockheed Martin Corp.

    International Astronomical Union (IAU)
    Hong Kong, China

    Asia-Pacific Regional IAU Meeting (APRIM 2026)

    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. This prestigious event provides a platform for the exchange of cutting-edge research, innovative ideas, and collaborative efforts in the field of astronomy and […]

    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

    2026 ASCEND Conference

    Accelerating Space Commerce, Exploration, and New Discovery

    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 for Kennedy declaring to congress “I believe that this Nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning […]

    von Karman Institute for Fluid Dynamics
    Brussels, Belgium

    32nd AIAA / CEAS Aeroacoustics Conference 2026

    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. The AIAA/CEAS Aeroacoustics Conference 2026 continues to be the leading international platform for the exchange of scientific and technical knowledge in the field […]

    €475
  • South African Radio Astronomy Observatory (SARAO), ZA Space, GMN Fairs, Hauweng, Advanced Business Events
    Pretoria, South Africa

    International Space Summit Africa

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

    Lunar Calendar
    Worldwide

    Islamic New Year 1448 AH

    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 may be delayed.

    Spaceland, Italy, Space Summits
    Rome, Italy

    World Astronomy, Astrophysics and Space Science Summit

    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, and support the unifying themes of all Astronomy, Astrophysics and Space Science. Don't miss the unique workshop, "Shaping Future Eco-Friendly Habitats for Mars […]

  • Japan Aerospace Exploration Agency (JAXA)
    Asteroid 98943 Torifune Trajectory

    NET Jul — Hayabusa 2, Asteroid 98943 Torifune Flyby

    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 Earth in 2020.

    SpaceX
    SLC-39A, Kennedy Space Center FL, USA

    NET Q3 — Launch Falcon 9 / Intuitive Machines IM-3 Nova-C Lander

    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.

    China National Space Administration (CNSA)
    Near-Earth Object (NEO)

    Tianwen-2 to Rendezvous with Kamo’oalewa (2016 HO3)

    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, 2027 and return to Earth Nov 29, 2027.

    Space Age Publishing Company (SPC)
    Global / Inter-Global

    Space Age Publishing Company (SPC) 50th Observation

    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 publishing-broadcasting from Earth, the surface of the Moon, and perhaps far beyond with its affiliated International Lunar Observatory Association and other enterprises.

    Purdue University
    West Lafayette, Indiana

    Neil Armstrong Space Prizes to be Awarded

    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 most consequential for humanity. Prize recipients to be announced on or before July 20, 2026.

    National Aeronautics and Space Administration (NASA)
    Nationwide USA

    Viking 1 Mars Lander 50th Landing Observation Anniversary

    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 day in 1976 due to rough landing site.

    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 / endorsed declaration by the United Nations since 2022.

    National Aeronautics and Space Administration (NASA)
    Global / Inter-Global

    Apollo 11, 57th Observation

    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; Command Module piloted by Michael Collins.

  • China National Space Administration (CNSA)
    Wenchang Space Launch Center, Hainan Island, China (19° N)

    NET Aug — Launch Long March 5 / Chang’E-7

    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 (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, […]

    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 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.

    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 were unsuccessful in lunar landing.

    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 country to land on Moon, and 1st near the Moon South Pole.

    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

    ~5,000 attendees expected; student discount on registration fee; winners of student competition receive up to US$10,000

    $1000
    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 and its variability.

  • Canadian Space Agency (CSA-ASC)
    Ottawa, Ontario, Canada

    Tentative Term End for Canadian Space Agency President Lisa Campbell

    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 […]

    National Aeronautics and Space Administration (NASA)
    Worldwide

    Double Asteroid Redirection Test (DART) Anniversary Observation

    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.

    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 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 Organization
    Worldwide

    International Observe the Moon Night 2026

    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.

    National Aeronautics and Space Administration (NASA), 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 atmosphere, deployed Schiaparelli demonstration lander 19 Oct 2016 (unsuccessful).

    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 around a planet other than Earth; launched 2001.

  • ESA / JAXA
    Mercury Orbit

    NET Nov — BepiColombo, Hermocentric Orbit Insertion at Mercury

    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.

    China National Space Administration (CNSA)
    Shackleton Crater Ridge, Moon Surface

    NET Nov — Chang’E-7 to land on Moon

    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, 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, […]

    International Astronomical Union (IAU), National Astronomical Observatory of Japan (NAOJ)
    Tokyo, Japan

    IAU Symposium 409: Innovative Research and Techniques in Astronomy Outreach

    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, […]

    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 operations in space today, launched in 2004.

  • SpaceX
    Starbase, 25.9°N, Boca Chica TX, USA

    NET Dec — Launch Starship / Venturi Astrolab FLEX C

    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 […]

    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, 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.

    European Space Agency (ESA), National Aeronautics and Space Administration (NASA)
    Low Earth Orbit (LEO)

    Solar and Heliospheric Observatory (SOHO) Begins Next Year in Space

    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 than 3,000 comets.

    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 Earth in 2020, and now in extended mission to flyby asteroid 98943 Torifune in 2026 and rendezvous with 1998 KY26 in 2031.

    American Geophysical Union (AGU)
    San Francisco CA, USA

    AGU 2026 Annual Meeting

    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

    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 holes, mapping dark matter, surpasses next full year in space today, launched 1999.

    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 another full year on Moon surface, landed 2013.

    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 2009, went into hibernation February 17, 2011 and reactivated August 21, 2013.

    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 billion stars; launched in 2013.

    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 via Ariane 5 ECA rocket in 2021.

    National Aeronautics and Space Administration (NASA)
    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, mineralogy, geology, and to search for traces of water; launched June 2, 2003 and arrived at Mars in Dec 2003.

  • SpaceX
    SLC-39A, Kennedy Space Center FL, USA

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

    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 […]

    Roscosmos State Corporation
    Vostochny Cosmodrome, Russia

    NET 2027 — Launch Luna-26

    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.

    Indian Space Research Organisation (ISRO)
    Satish Dhawan Space Center, Sriharikota, India

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

    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.

    China National Space Administration (CNSA)
    Wenchang Space Launch Center, Hainan Island, China (19° N)

    NET 2027 — Launch Long March 5 / Xuntian Telescope

    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 […]

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

    249th Meeting of the AAS

    At Salt Palace Convention Center.

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

    2027 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.

    National Aeronautics and Space Administration (NASA)
    Nationwide USA

    Apollo 1, 60th Observation

    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.

    National Aeronautics and Space Administration (NASA)
    Nationwide USA

    Challenger STS-51L, 41st Observation

    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 […]

    National Aeronautics and Space Administration (NASA)
    Nationwide USA

    Explorer 1, 69th Observation

    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.

  • National Aeronautics and Space Administration (NASA)
    Nationwide USA

    Columbia STS-107, 24th Observation

    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 Calendar
    China (Zhongguo) / Worldwide

    Lunar New Year

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

  • Milky Way Galaxy

    241st Galactic Tick Day

    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.

  • 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 name Pōwehi; imaged in April 2017 and released Apr 10, 2019.

    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 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, […]

    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 38th year in space today, launched Apr 24, 1990; could continue operations until 2040s.

    China National Space Administration (CNSA)
    Earth Trajectory

    Tianwen-2 Departs Kamo’oalewa (2016 HO3)

    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.

    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 explorers; originally began as ‘National Space Day’ in 1997 by Lockheed Martin Corp.

    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 for Kennedy declaring to congress “I believe that this Nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning […]

  • 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 the beginning of the month and year may be delayed.

  • National Aeronautics and Space Administration (NASA)
    SLC-39B, Kennedy Space Center FL, USA

    NET July — Launch SLS / Orion / Artemis 3 / Humans Land on the Moon

    Projected date for 1st crewed lunar landing since 1972, planning to land 1st Woman & 1st Person of Color on the Moon, and 1st crew to Moon South Pole; 30-day mission to consist of 4 crew at launch, 2 to land on surface for 6.5 days using Human Landing System.

    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 / endorsed declaration by the United Nations since 2022.

    National Aeronautics and Space Administration (NASA)
    Nationwide USA

    Viking 1 Mars Lander 51st Landing Observation Anniversary

    First USA spacecraft to successfully land on another planet commemorated today for its accomplishment 51 years ago; originally scheduled for July 4, landing was delayed until this day in 1976 due to rough landing site.

    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 Armstrong and Lunar Module Pilot Buzz Aldrin; Command Module piloted by Michael Collins.

  • 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 and includes scientific sessions and administrative business.

    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 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.

    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 64-km diameter 3548 Eurybates asteroid and its 1-km diameter satellite Queta.

    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 were unsuccessful in lunar landing.

    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 country to land on Moon, and 1st near the Moon South Pole.

    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 and its variability.

  • SpaceX
    TBD

    NET Sep — Launch Falcon 9 / Near-Earth Object Surveyor

    NET Sep — NASA's Near-Earth Object Surveyor space telescope (NEO Surveyor), to help advance planetary defense efforts to discover and characterize most of the potentially hazardous asteroids and comets that come within 30 million miles of Earth’s orbit, planned to be launched this month.

    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 21-km diameter 15094 Polymele asteroid which may be a collisional fragment and rich in organic tholin compounds.

    National Aeronautics and Space Administration (NASA)
    Worldwide

    Double Asteroid Redirection Test (DART) Anniversary Observation

    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.

    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.

  • SpaceX
    SLC-39A, Kennedy Space Center FL, USA

    NET Oct — Launch Falcon 9 / Intuitive Machines IM-4 Nova-C Lander

    NET Oct  — Under US$116.9M NASA CLPS award, Intuitive Machines 4th mission to deliver 6 NASA payloads totaling ~79 kg, including carry ESA Lunar ice drill ProSEED / PROSPECT sensor array, magnetometer, radiometer to investigate surface composition, instrument to measure how lander affects regolith, retroreflectors as location marker, a yeast experiment; payload capacity for commercial […]

    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 mission Sputnik One launched by Soviet Union 1957; Oct 10 is 58th observation of Outer Space Treaty going into effect 1967.

    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 atmosphere, deployed Schiaparelli demonstration lander 19 Oct 2016 (unsuccessful).

    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 around a planet other than Earth; launched 2001.

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