A low carbon abundance in planetary atmospheres, which the James Webb Space Telescope can detect, could be a signature of habitability.

Using multiple observatories, astronomers directly detect tellurium in two merging neutron stars.

The frosty gas giant was discovered in a system that also hosts a warm Jupiter.

A new technique uses remote images to gauge the strength of ancient and active rivers beyond Earth.

Astronomers discover the last three planets the Kepler telescope observed before going dark.

Robotic parts could be assembled into nimble spider bots for exploring lava tubes or heavy-duty elephant bots for transporting solar panels.

Saverio Cambioni discusses new results revealing the redirected asteroid Dimorphos to be a dust-trailing rubble-pile.

Astronomers have found a way to determine an asteroid’s interior structure based on how its spin changes during a close encounter with Earth.

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.