Ancient shoreline features hint that water on Mars once formed a vast ocean.

geological signatures indicate that around 3.4 billion years ago, a connected oceanic system existed on a planetary scale, rather than just isolated lakes.

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. A visualization of what ...

The findings potentially solve the paradox of how liquid water seems to have persisted on Mars even when the climate grew too ...

First ever supercomputer simulations of Mars with a fully molten core could explain the Red Planet's unusual magnetic field. Billions of years ago, Mars had an active magnetic field. Mysteriously, its ...

"The Chinese may well beat the U.S. with a grab sample." ...

The Chinese-led research team based its findings on seismic readings from NASA's InSight lander on Mars, which recorded more than 1,300 marsquakes before shutting down in 2022. The spacecraft landed ...

The concept of terraforming Mars — transforming the planet's climate to support life as we know it — has long belonged to the realm of science fiction. But a new study argues that it's time to take ...

CAPE CANAVERAL, Fla. — Scientists revealed this week that Mars’ innermost core appears to be a solid hunk of metal just like Earth’s. The Chinese-led research team based their findings on seismic ...