Space Event / Encounter

NASA craft to perform Jupiter flyby during Perijove 76, its 76th close flyby of Jupiter and 75th science flyby with...

The Sun rises exactly in east traveling through sky for 12 hours, sets exactly in west; every place on Earth...

Astronaut Scholarship Foundation presents a Live Chat with veteran NASA Astronaut Leland Melvin on Thursday, September 25th at 1:00 PM...

All ages welcome! Come and join your colleagues and friends in the aerospace profession in a relaxed atmosphere. Network over a...

Appearing when Earth passes through the tail of Comet 21P / Giacobini-Zinner, the comet was a perihelion in 2025; speculation...

One of 2 showers yearly from Halley’s Comet dust, one dust cloud from Halley's path toward the Sun, and one...

Known for fireballs in a swarm year such as 2025, they will have to compete with a Full Moon Nov...

From Comet Encke dust cloud, with peak rate 5 per hour. Moon is 53% full.

From Comet Tempel-Tuttle (55P) dust cloud, peak rate 15 per hour. Moon is 9% full.

The northern hemisphere's autumn equinox on Mars marks the beginning of the autumn season in the northern hemisphere and coincides...

Appearing at brightest magnitude 0.9, traveling from SW to E, Hubble Space Telescope will appear over Hawaiian Islands from 18:56:02...

ISS Expedition 73 members Sergey Ryzhikov, Alexey Zubritsky and Jonny Kim planned to return to Earth today in Roscosmos Soyuz...

Usually strongest meteor shower yearly, up to 150 hourly. Moon is 30% full.

Occurs 05:01 HST, 15:01 UTC; It is the winter solstice in the Northern Hemisphere, resulting in the shortest day and...

From Comet Tuttle (8P), with up to 10 per hour. Moon only 3% full helps viewing on peak nights; active...

At magnitude 2.9, the Hubble Space Telescope will travel over Hawaiian Islands from SSE to E, rising at 04:58:50 to...

NASA Juno indicates Europa ice may be 6x deeper than thickest Antarctic ice; timing of craft planned plunge into Jupiter...

The Quadrantid shower is known for its brief, intense peak, lasting only a few hours. Appearing to radiate from Constellation...

08:00 HST, 18:00 UTC; Earth perihelion is the point in its orbit when it is closest to the Sun, occurring...

Visible at -3.9 magnitude, the International Space Station will travel over Hawaiian Islands from NW to SE, rising at 04:48:07...

Beginning 06:20:51 HST from the SSW, Tiangong will make a visible pass at brightest magnitude 1.2 over Hawaiian Islands, setting...

Total solar eclipse, starts 17:02:06 UTC (07:02:0 HST), will sweep across the Arctic, Greenland, Iceland, and northern Spain, offering up...

Best-known for occasional rare, intense bursts and bright, long-lasting fireballs, they average 3–6 meteors per hour, up to 25+; body...

Begins 11:42 UTC (01:42 HST), maximum at 12:13 UTC, creating a "ring of fire" visible primarily over remote parts of...

After a final reboost of the ISS, CRS-33, SpaceX Cargo Dragon, is scheduled to undock from the International Space Station...

Mercury, Venus, Jupiter, Saturn, Uranus and Neptune form an arc across the sky, most visible in the west 20-40 minutes...

Maximum eclipse 11:33 UTC (01:33 HST); visible across North America, the Pacific, East Asia, and Australia. The total phase (totality)...

NASA Astronauts Jessica Meir and Chris Williams will conduct U.S. spacewalk 94, exiting the Quest airlock at about 08:00 EDT | 12:00...

Occurs 04:45 HST / 14:45 UTC; March equinox is known as the vernal equinox (or spring equinox) in the Northern...

02:12 UTC (14:12 HT)

Predicted date for the comet to make a close pass by the Sun (perihelion), potentially triggering a sudden brightening and...

Best seen from Northern Hemisphere, with a lower hourly rate in the Southern Hemisphere, Lyrids seem to stream from the...

Expected 2 days after launch from Kazakhstan, arriving ~22:21 UTC with ~7,280 kg of cargo.

17:24 UTC (07:24 HST).

Strongest viewed from southern tropics; north of the equator, expect medium rates of 10-30 per hour just before dawn, with...

On its way to the asteroid Psyche, the Psyche spacecraft will pass within 4,500 km of Mars and will harness...

22:46 HST on May 30 | 08:46 UTC on May 31.

Seen in the sunrise direction in the dark hour before dawn, with a predicted rate of 60 to 200 per...

23:57 UTC (13:57 HST).

JAXA Hayabusa 2 mission to flyby S-type asteroid 98943 Torifune this month and rendezvous with asteroid 1998 KY26 in 2031,...

China asteroid sample return mission, after arriving at Kamo’oalewa on June 7, today begins to collect at least 100 grams...

Occurs 07:30 HST / 17:30 UTC; Earth aphelion is the point in its elliptical orbit where it is farthest from...

Closest Earth approach, peak brightness for viewing, tracking and studies.

14:37 UTC / 04:37 HST.

Emanating from ~6km-wide comet with 5.3-year Solar orbit, visible in constellation Aquarius near star Delta Aquarii, fast, faint meteors peak...

With 93% of the Moon falling into Earth's umbral shadow, maximum eclipse 18:19 HST // 04:12 UTC on August 28,...

ESA Jupiter Icy Moons Explorer (JUICE) expected to perform its second flyby of Earth this month, arriving at Jupiter in...

Campbell was first appointed in September 2020. She was reappointed for an additional year, 14 Sep 2025 - 14 Sep...

14:02 HST (04:02 UTC); the Sun rises exactly in east traveling through sky for 12 hours, sets exactly in west;...

16:49 UTC (06:49 HST).

Appearing in constellation Orion, Orionids are a Class I shower providing up to 20 per hour, swiftly moving ~66km/sec. With...

18:12 HST // 04:12 UTC on Oct 26.

NET Nov — CNSA CE-7 mission planned to land at Shackleton Crater Ridge near Moon South Pole region to survey...

NET Nov — BepiColombo, Hermocentric Orbit Insertion at Mercury, Mercury Orbit: European Space Agency / JAXA Mercury Planetary Orbiter (MPO) and Mercury...

14:54 UTC (04:54 HST).

10:49 HST (00:49 UTC); the Sun reaches the point where it is farthest South of the celestial equator, marking the...

25:29 HST //  01:29 UTC on Dec 24.

Highlighting Galaxy awareness by celebrating the Solar System traveling around Milky Way Galaxy Center every ~225 million Earth years, one...

China Tianwen-2 asteroid sample return mission planned to depart Kamo’oalewa (2016 HO3) today and return to Earth with least 100...

NASA mission to encounter 11 asteroids including a main belt and 7 Jupiter Trojans to come within 1,000 km of...

NASA mission to encounter 11 asteroids including a main belt and 7 Jupiter Trojans to come within 415 km of...

China asteroid sample return capsule planned to return to Earth today with at least 100 grams from Kamo’oalewa (2016 HO3);...

☆ NET Dec — JAXA Hayabusa 2 mission to perform first flyby Earth today on way to rendezvous with asteroid...

NET 2028 — Standard funding of International Space Station may end this year from partner Russia; mission extension to at least...

NET Apr — European Space Agency / JAXA Mercury Magnetospheric Orbiter (BepiColombo) nominal mission ends this month, 5.82 Mercury years...

NASA's Lucy mission, to encounter 11 asteroids including a main belt and 7 Jupiter Trojans, planned to come within 1,000...

☆ NET Jun — JAXA Hayabusa 2 mission to perform second flyby Earth today on way to rendezvous with asteroid...

NASA Lucy mission, to encounter 11 asteroids including a main belt and 7 Jupiter Trojans, to come within 1,000 km...

☆ Nov 24 — 242nd Galactic Tick Day, Milky Way Galaxy: Highlighting Galaxy awareness by celebrating the Solar System traveling around Milky...

NET 2029 — Scheduled end of European Space Agency Euclid mission which is measuring accelerated expansion of Universe, aiding in...

NET 2029 — NASA and JPL Caltech Psyche Mission to investigate all-metal asteroid Psyche to insert itself into asteroid orbit...

NET Jan — ESA Jupiter Icy Moons Explorer (JUICE) expected to perform 3rd and final flyby of Earth this month,...

NET Feb — INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL) space telescope will burn up upon Earth atmosphere reentry this month due to natural orbit...

On this day, which happens to be a Friday, 370-meter diameter asteroid (previously known as 2004 MN4) will narrowly miss...

OSIRIS-APophis EXplorer (OSIRIS-APEX) is planned rendezvous with and orbit asteroid Apophis starting today for 9 months following the asteroid’s close...

NET July — China Chang’E-2 spacecraft expected to come within 7M km of Earth around this date after reaching 300M...

NET Oct — ESA Jupiter Icy Moons Explorer (JUICE) expected to perform flyby of Asteroid 223 Rosa this month, arriving...

NET 2030 — Europe hopes to have built a sustainable Moon Village by this date, while working toward Mars missions.

Europa Clipper mission to insert into Jupiter orbit on this day to study Galileo moon Europa through a series of...

NET Aug — Japan Martian Moons eXploration (MMX) mission, now with Phobos sample, to begin its return to Earth this...

NASA mission to encounter 11 asteroids, including a main belt and 7 Jupiter Trojans, to perform Earth flyby / gravity...

ISEE-3 (International Sun-Earth Explorer-3) craft, presumably in safe mode, is traveling around Sun & predicted to return to vicinity of...

NET July — ESA Jupiter Icy Moons Explorer (JUICE) expected to reach Jupiter this month if launched April 2023; will...

☆ NET Jul — JAXA Hayabusa 2 mission to rendezvous with asteroid 1998 KY26, after returning samples from (162173) Ryugu...

NET July — Japan Martian Moons eXploration (MMX) mission with Mars moon Phobos' sample to arrive at Earth this month...

Highlighting Galaxy awareness by celebrating the Solar System traveling around Milky Way Galaxy Center every ~225 million Earth years, one...

ESA Jupiter Icy Moons Explorer (JUICE) expected to perform flyby of moon Europa this month.

Mercury to pass directly between Earth and Sun; observers see distant planet as small dot gliding slowly across face of...

NASA Lucy mission to come within 1,000 km of 113-km diameter 617 Patroclus and 104-km diameter Menoetius, p-type binary asteroids;...

End of primary mission for NASA Lucy mission, future science and mission plan extension TBD; mission is a twelve-year journey...

ESA Jupiter Icy Moons Explorer (JUICE) expected to achieve Ganymede elliptical orbit insertion this month.

China asteroid sample return mission, having returned at least 100 grams from Kamo’oalewa (2016 HO3), to rendezvous with and begin...

ESA Jupiter Icy Moons Explorer (JUICE) is planned to be deorbited and impact Ganymede at the end of 2035, having...