A “grazing encounter” may have smashed the moon to bits to form Saturn’s rings, a new study suggests.

Refining current opacity models will be key to unearthing details of exoplanet properties — and signs of life — in data from the powerful new telescope.

Day and night, and across seasons, the instrument generates breathable oxygen from the Red Planet’s thin atmosphere.

The moon sustained twice as many impacts as can be seen on its surface, scientists find.

Just 33 light years from Earth, the system appears to host two rocky, Earth-sized planets.

The varied surface suggests a dynamic history, which could include metallic eruptions, asteroid-shaking impacts, and a lost rocky mantle.

New findings may help explain how Earth’s crust forms, the location of ore deposits, and why some volcanoes are more explosive than others.

Among thousands of known exoplanets, MIT astronomers flag three that are actually stars.

Scientists propose a new mechanism by which oxygen may have first built up in the atmosphere

Plus, a section of a rocket is about to crash on the Moon. What scientists hope to learn from it. Listen to The Conversation Weekly podcast.