A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...

A biologist specializing in invasive species has partnered with a former Pentagon strategist in pushing NASA to construct a ...

Beneath the icy silence of Antarctica's famous Dry Valleys lies a world so unusual that it often resembles another planet.

What if consciousness isn’t limited to brains like ours? Philosophers Eric Schwitzgebel and Jeremy Pober argue that ...

An instrument on the Perseverance rover has identified large, complex carbon compounds alongside unusual patterns on the ...

Researchers have looked at how particular microbes from Earth would fare in conditions like those of Mars, the moon, and the ...

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...

This video breaks down why K2-18b has suddenly become one of the most important planets in the search for life beyond Earth.

A Stanford scientist's model suggests many small rocky planets can't sustain atmospheres, potentially explaining the scarcity ...

Where did life on Earth come from? It is one of humanity’s oldest and most fascinating questions. For centuries, people have ...