Planetary Science Division

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Planetary Science
Planetary Science Division
Prizes, Challenges, & Crowdsourcing News
Prizes, Challenges, and Crowdsourcing Program
Technology
NASA is getting ready to send four astronauts around the Moon with Artemis II, laying the foundation for sustainable missions to the lunar surface and paving the way for human exploration on Mars. As the agency considers deep space endeavors that could last months or years, it must develop ways to feed astronauts beyond sending […]
Posted January 13, 2026
Dragonfly
Astrobiology
Langley Research Center
Missions
Planetary Science
Planetary Science Division
Science Mission Directorate
The Solar System
Titan
In sending a car-sized rotorcraft to explore Saturn’s moon Titan, NASA’s Dragonfly mission will undertake an unprecedented voyage of scientific discovery.
Posted January 9, 2026
Titan
Astrobiology
Cassini
Deep Space Network
Dragonfly
Jet Propulsion Laboratory
Planetary Science
Planetary Science Division
Saturn
Saturn Moons
A key discovery from NASA’s Cassini mission in 2008 was that Saturn’s largest moon Titan may have a vast water ocean below its hydrocarbon-rich surface. But reanalysis of mission data suggests a more complicated picture: Titan’s interior is more likely composed of ice, with layers of slush and small pockets of warm water that form […]
Posted December 17, 2025
Comets
Heliophysics
Hubble Space Telescope
James Webb Space Telescope (JWST)
Lucy
Mars
Mars 2020
Mars Reconnaissance Orbiter (MRO)
MAVEN (Mars Atmosphere and Volatile EvolutioN)
Missions
Perseverance (Rover)
Planetary Science
Planetary Science Division
Planets
Polarimeter to Unify the Corona and Heliosphere (PUNCH)
Psyche Mission
Science & Research
Science Mission Directorate
SOHO (Solar and Heliospheric Observatory)
STEREO (Solar TErrestrial RElations Observatory)
The Solar System
The Sun
This article was updated to include the full range of dates from the SOHO image. Lee esta historia en español aquí. NASA is in the midst of an unprecedented solar system-wide observation campaign, turning its spacecraft and space telescopes to follow comet 3I/ATLAS, the third known interstellar object to pass through our solar system. Twelve […]
Posted November 19, 2025
Asteroids
Goddard Space Flight Center
Lucy
Missions
NASA Centers & Facilities
NASA Directorates
Planetary Science Division
Science Mission Directorate
The Solar System
Trojan Asteroids
The IAU (International Astronomical Union), a global naming authority for celestial objects, has approved official names for features on Donaldjohanson, an asteroid NASA’s Lucy spacecraft visited on April 20.
Posted September 16, 2025
General
Planetary Defense
Planetary Defense Coordination Office
Planetary Science
Planetary Science Division
Science & Research
Science Mission Directorate
Each month, NASA’s Planetary Defense Coordination Office releases a monthly update featuring the most recent figures on NASA’s planetary defense efforts, near-Earth object close approaches, and other timely facts about comets and asteroids that could pose an impact hazard with Earth. Here is what we’ve found so far. Updated: September 11, 2025
Posted September 11, 2025
Perseverance (Rover)
Mars 2020
Planetary Science Division
Science Mission Directorate
NASA will host a news conference at 11 a.m. EDT Wednesday, to discuss the analysis of a rock sampled by the agency’s Perseverance Mars rover last year, which is the subject of a forthcoming science paper. The agency previously announced this event as a teleconference.  Watch the news conference on NASA’s YouTube channel and the agency’s […]
Posted September 10, 2025
Astromaterials
Planetary Science
Planetary Science Division
The Solar System
A new NASA study reveals a surprising way planetary cores may have formed—one that could reshape how scientists understand the early evolution of rocky planets like Mars.
Posted May 22, 2025
Dragonfly
Missions
NASA Directorates
Planetary Science
Planetary Science Division
Planets
Saturn
Saturn Moons
Science Mission Directorate
The Solar System
When it descends through the thick golden haze on Saturn’s moon Titan, NASA’s Dragonfly rotorcraft will find eerily familiar terrain. Dunes wrap around Titan’s equator. Clouds drift across its skies. Rain drizzles. Rivers flow, forming canyons, lakes and seas.  But not everything is as familiar as it seems.
Posted May 22, 2025
General
Ice Giants
Langley Research Center
Planetary Science Division
Uranus
When a planet’s orbit brings it between Earth and a distant star, it’s more than just a cosmic game of hide and seek. It’s an opportunity for NASA to improve its understanding of that planet’s atmosphere and rings. Planetary scientists call it a stellar occultation and that’s exactly what happened with Uranus on April 7. […]
Posted April 22, 2025
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