• Saturday

    — ISS Partners (NASA, Roscosmos, JAXA, ESA and CSA-ASC),
    Low Earth Orbit (LEO)
    Visible at -3.9 magnitude, the International Space Station will travel over Hawaiian Islands from NW to SE, rising at 04:48:07 to 04:54:02 HST.

    Sunday

    — China National Space Administration (CNSA),
    Low Earth Orbit (LEO)
    Beginning 06:20:51 HST from the SSW, Tiangong will make a visible pass at brightest magnitude 1.2 over Hawaiian Islands, setting 06:29:49 in the ENE.

    Thursday

    — National Aeronautics and Space Administration (NASA),
    Low Earth Orbit (LEO)
    To be confirmed after postponement of Spacewalk #95; would begin 05:40 EST, lasting ~6.5 hours.
  • Friday

    — Sun-Earth,
    Global / Inter-Global
    Occurs 04:45 HST / 14:45 UTC; March equinox is known as the vernal equinox (or spring equinox) in the Northern Hemisphere and as the autumnal equinox (or...
  • Tuesday

    — Comet C/1861 G1 (Thatcher),
    Worldwide
    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...
  • Wednesday

    — Japan Aerospace Exploration Agency (JAXA),
    Asteroid 98943 Torifune Trajectory
    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...

    Saturday

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

    Monday

    — Sun-Earth,
    Global / Inter-Global
    Occurs 07:30 HST / 17:30 UTC; Earth aphelion is the point in its elliptical orbit where it is farthest from the Sun, occurring annually in early July;...
  • Tuesday

    Monday

  • Sunday

    — China National Space Administration (CNSA),
    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 environment and resources with Relay Satellite, Orbiter,...
  • Monday

    — Milky Way Galaxy,
    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...
  • Saturday

    — China National Space Administration (CNSA),
    Earth Trajectory
    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...
  • Thursday

    — National Aeronautics and Space Administration (NASA),
    Jupiter Greek camp at Lagrangian point L4
    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...
  • Wednesday

    — National Aeronautics and Space Administration (NASA),
    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 21-km diameter 15094 Polymele asteroid which may be...
  • Monday

  • Wednesday

    — Japan Aerospace Exploration Agency (JAXA),
    Earth Trajectory
    ☆ NET Dec — JAXA Hayabusa 2 mission to perform first flyby Earth today on way to rendezvous with asteroid 1998 KY26 in 2031, after returning samples...
  • Saturday

  • Saturday

    — ESA / JAXA,
    Mercury Orbit
    NET Apr — European Space Agency / JAXA Mercury Magnetospheric Orbiter (BepiColombo) nominal mission ends this month, 5.82 Mercury years after orbit insertion; potential extended mission and...

    Tuesday

    — National Aeronautics and Space Administration (NASA),
    Jupiter Greek camp at Lagrangian point L4
    NASA's Lucy mission, to encounter 11 asteroids including a main belt and 7 Jupiter Trojans, planned to come within 1,000 km of 34-km diameter 11351 Leucus asteroid...
  • Thursday

    — Japan Aerospace Exploration Agency (JAXA),
    Earth Trajectory
    ☆ NET Jun — JAXA Hayabusa 2 mission to perform second flyby Earth today on way to rendezvous with asteroid 1998 KY26 in 2031, after returning samples...
  • Tuesday

  • Saturday

    — National Aeronautics and Space Administration (NASA),
    Jupiter Greek camp at Lagrangian point L4
    NASA Lucy mission, to encounter 11 asteroids including a main belt and 7 Jupiter Trojans, to come within 1,000 km of 51-km diameter 21900 Orus asteroid (which...

    Friday

    — Milky Way Galaxy,
    ☆ Nov 24 — 242nd Galactic Tick Day, Milky Way Galaxy: Highlighting Galaxy awareness by celebrating the Solar System traveling around Milky Way Galaxy Center every ~225 million Earth...
  • Monday

    — European Space Agency (ESA),
    Sun-Earth L2 Lagrange point
    NET 2029 — Scheduled end of European Space Agency Euclid mission which is measuring accelerated expansion of Universe, aiding in understanding of dark energy / dark matter;...
  • Thursday

  • Friday

    — Asteroid 99942 Apophis,
    Medium Earth Orbit (MEO)
    On this day, which happens to be a Friday, 370-meter diameter asteroid (previously known as 2004 MN4) will narrowly miss Earth by about 30,000 km, which is...

    Saturday

    — National Aeronautics and Space Administration (NASA),
    Asteroid 99942 Apophis Orbit
    OSIRIS-APophis EXplorer (OSIRIS-APEX) is planned rendezvous with and orbit asteroid Apophis starting today for 9 months following the asteroid’s close Earth approach which occurred April 13, 2029;...
  • Sunday

    — China National Space Administration (CNSA),
    Deep Space
    NET July — China Chang’E-2 spacecraft expected to come within 7M km of Earth around this date after reaching 300M km apogee; craft was launched 1 October...
  • Monday

  • Tuesday

  • Thursday

    — National Aeronautics and Space Administration (NASA),
    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);...
  • Wednesday

    — National Aeronautics and Space Administration (NASA),
    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...
  • Wednesday

  • Tuesday

    — Japan Aerospace Exploration Agency (JAXA),
    Asteroid 1998 KY26
    ☆ NET Jul — JAXA Hayabusa 2 mission to rendezvous with asteroid 1998 KY26, after returning samples from (162173) Ryugu to Earth in 2020 and flying by...
  • Wednesday

    — Milky Way Galaxy,
    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...
  • Thursday

  • Friday

    — Sun-Mercury,
    Global / Inter-Global
    Mercury to pass directly between Earth and Sun; observers see distant planet as small dot gliding slowly across face of Sun; starts Nov 12 at 20:41 HST,...
  • Tuesday

    — National Aeronautics and Space Administration (NASA),
    Jupiter Trojan camp at L5
    NASA Lucy mission to come within 1,000 km of 113-km diameter 617 Patroclus and 104-km diameter Menoetius, p-type binary asteroids; Lucy will be in a stable, 6-year...
  • Friday

  • Friday

  • Wednesday

    — China National Space Administration (CNSA),
    Comet 311/P PanSTARRS Orbit
    China asteroid sample return mission, having returned at least 100 grams from Kamo’oalewa (2016 HO3), to rendezvous with and begin orbiting Comet 311/P PanSTARRS for 1 year.
  • Saturday