Planetary Science
- Planetary Science
Ancient Mars had long-lasting lakes of liquid water
New evidence gathered by NASA’s Curiosity rover suggests Gale Crater once contained a stable lake of liquid water.
- Planetary Science
Ceres mountains and craters named for food
A host of agricultural spirits are immortalized on several craters and mountains on the dwarf planet Ceres.
- Planetary Science
Salt streaks sign of present-day water flows on Mars
Salt deposits on Mars hint at contemporary seasonal water flows on the Red Planet.
- Planetary Science
Salt streaks point to present-day water flows on Mars
Salt deposits on Mars hint at contemporary seasonal water flows on the Red Planet.
- Planetary Science
67P reveals recipe for a comet
Rosetta’s comet 67P probably started out as two smaller comets.
- Planetary Science
Mysterious circles appear, grow on comet
The Rosetta spacecraft caught five circular depressions quickly spreading across a region of comet 67P.
- Planetary Science
‘The Martian’ is entertaining science fiction rooted in fact
With NASA’s help, filmmakers made story of astronaut stranded on Mars believable.
- Planetary Science
Enceladus’ ocean goes global
A subsurface liquid water ocean envelops Saturn’s icy moon Enceladus.
- Planetary Science
Mars’ ionosphere mystery explained
A decades-old disagreement between the Viking landers and spacecraft buzzing around Mars might come down to what time of day each was investigating the Red Planet’s ionosphere.
- Planetary Science
Satellite captures double solar eclipse in action
NASA’s Solar Dynamics Observatory caught a rare double eclipse as both Earth and the moon partially blocked the sun.
- Planetary Science
Asteroid impacts may explain Venus’ missing oxygen
Asteroid impacts on Venus might have helped sequester oxygen left behind when Earth’s sister planet lost its water, new simulations show.
- Planetary Science
The first spacecraft buzzed a comet today in 1985
Thirty years ago, a spacecraft became the first to fly past a comet.
