Researchers are creating advanced simulations that will provide a deeper understanding of Mars’s climatic history and help to determine whether it was once able to sustain life.

Scientists might be looking for Martian life in the wrong place.

Meteorites that come from Mars help scientists understand the red planet’s interior.

It’s a rocky road for its rovers, a long slog for scientists—and back on Earth, a battle of the budget.

Chemical changes inside Mars's core caused it to lose its magnetic field. This, in turn, caused it to lose its oceans. But how?

In one experiment, the Viking landers added water to Martian soil samples. That might have been a very bad idea.

A new space probe suggests that the moonlet Deimos isn’t a captured asteroid after all.

It'd be "a step more significant than the colonization of land by our amphibian ancestors some 500 million years ago." But Sagan had reservations.

The Perseverance mission to Mars represents a considerable step forward for the space program. But are rovers as good as it gets?

Curiosity rover's recent report of methane on Mars isn't the first time the gas has been indicated. Does it necessarily mean that Mars harbors life?