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

In 1877, an Italian astronomer mapped faint lines on Mars and called them canali, meaning channels or grooves. But the word ...

Scientists in a recent breakthrough have discovered vast hidden magma systems beneath the surface of Mars, marking an “unexpected discovery” leading the researchers closer to finding ...

There are "vast hidden magma systems" inside of Mars, scientists say – and it could have major implications for the search ...

The planet Mars is home to many wonders waiting to be discovered by humans in the coming years. Experts recently discovered ...

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

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

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

Do you know why there are no earthquakes on Mars? It’s because they’re called “marsquakes” (sorry).

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

The organic molecules could come from life or from ordinary chemistry — only samples returned to Earth can settle it.

NASA wants to send an ambitious fleet of helicopters to soar through Martian skies—but scientists fear the endeavor could ...