Space
- Planetary Science
Mysterious circles appear, grow on comet
The Rosetta spacecraft caught five circular depressions quickly spreading across a region of comet 67P.
- Astronomy
This weekend, lunar eclipse coincides with supermoon
On September 27, sky gazers will be treated to a rare type of total lunar eclipse.
- Astronomy
Black hole collisions evade detection
The environment in the centers of some galaxies might inhibit gravitational waves radiating from supermassive black holes, a new study suggests.
- Cosmology
Complexity in the universe, hidden craters and more reader feedback
Readers discuss order and disorder in the universe, the languages of science communication and more.
- 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.
- Planetary Science
New Pluto photos show unprecedented detail
New images from the New Horizons spacecraft show off Pluto and Charon in unprecedented detail.
- Planetary Science
Ceres’ mysterious bright spots come into focus
The Dawn spacecraft gets its best look yet at bright spots on Ceres.
