Studies of gravity variations at Mars have revealed dense, large-scale structures hidden beneath the sediment layers of a ...

Mars experiences faster water loss when it nears the Sun, with Hubble and MAVEN showing seasonal variations linked to the ...

The European Space Agency has found a “smiley” face on the surface of Mars — and the joy-sparking pattern could be a sign of ...

MARS may be drenched beneath its surface, with enough water hiding in the cracks of underground rocks to form a global ocean, ...

Researchers have identified what they believe could be oceans' worth of water on Mars. There's just one snag: it's deep ...

Newly released images of Mars reveal a "smiley" salt deposit on the Red Planet's surface. A related study suggests that ...

A new study suggests Mars may be drenched beneath its surface, with enough water hiding in the cracks of underground rocks to ...

Stunning new images from the ExoMars orbiter reveal ancient salt deposits on Mars, even forming a smiley face.

Based on MAVEN's previous observations, Mars has lost enough water to space to form a GEL of between tens and hundreds of meters deep. Combined with the huge amount of water recently found buried ...

"These dense structures could be volcanic in origin or could be compacted material due to ancient impacts," a researcher said.

Running those numbers, Clarke and his co-authors estimate that of the mile-deep layer of water that may once have been the ...

Scientists explore Mars water loss, tracing hydrogen and deuterium escape with advanced space telescopes like MAVEN and ...