• NET 2030 — Launch Angara A5 / Luna-29

    Vostochny Cosmodrome, ~52°N, Russia

    NET 2030 — Roscosmos hoping to launch Angara A5 with Luna-29 (Luna-Resurs 3) Moon South Pole lander and rover; mission goals / landing site TBD, will support future Human base.

  • NET 2030 — Launch Millimetron (Spektr-M)

    TBD

    NET 2030 — Russia hopes to launch Millimetron (Spektr-M) space observatory with a diameter of 10 meters to Sun-Earth L2 Lagrange Point to study black holes, formation of stars, planets, galaxies.

  • 255th Meeting of the 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 name Pōwehi; imaged in April 2017 and released Apr 10, 2019.

  • Europa Clipper to Insert into Jupiter Orbit

    Jupiter Orbit

    Europa Clipper mission to insert into Jupiter orbit on this day to study Galileo moon Europa through a series of 44 close flybys (25 to 2,700 km); launched 10 October 2024.

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

  • 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 / endorsed declaration by the United Nations since 2022.

  • 54th Anniversary: First-Ever Landing on Mars (Viking 1)

    Nationwide USA

    First USA spacecraft to successfully land on another planet commemorated today for its accomplishment 54 years ago; originally scheduled for July 4, landing was delayed until this day in 1976 due to rough landing site.

  • 12 Years in Space: Parker Solar Probe

    Heliocentric Orbit

    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.

  • 7th Anniversary: India’s First Lunar Landing (Chandrayaan-3)

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

  • 18 Years in Space: Van Allen Probes

    Low Earth Orbit (LEO)

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

  • 15 Years in Space: India’s Astrosat

    Low Earth Orbit (LEO)

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

  • 29 Years in Mars Orbit: Mars Odyssey

    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.

  • Lucy Spacecraft 3rd Earth Flyby (660 km)

    Jupiter Trajectory

    NASA mission to encounter 11 asteroids, including a main belt and 7 Jupiter Trojans, to perform Earth flyby / gravity assist today coming within 660 km after reaching Jupiter orbit and returning to the vicinity of the Earth.