Astronomy, Mars | featured news

A vast ocean likely covered one-third of the surface of Mars some 3.5 billion years ago, according to a new study. While the notion of a large, ancient ocean on Mars has been repeatedly proposed and challenged over the past two decades, the research provides further support for the idea of a sustained sea on the Red Planet more than 3 billion years ...

An international team of researchers on Thursday launched a grueling simulation of a flight to Mars that will keep them locked in a cascade of ...

If NASA's exploration of Mars were summed up in a bumper sticker, it would read: "Follow the water."...

NASA is considering a plan to get around limited budgets set in Washington by stretching out missions to bring back samples from Mars, a researcher said on Wednesday.

Scientists have found lots of life-essential water – frozen as ice – in an unexpected place in our solar system: an asteroid between Mars and Jupiter.

President Barack Obama predicted Thursday his new space exploration plans would lead American astronauts to Mars and back in his lifetime, a bold forecast relying on rockets and propulsion still to be imagined and built.

A journey from Earth to Mars could soon take just 39 days -- cutting current travel time nearly six times -- according to a rocket scientist who has the ear of the US space agency.

A meteorite
the size of a huge watermelon on Mars is revealing new clues to the planet's
environment.

NASA and the European Space Agency have unveiled a joint plan for exploring Mars in the latter half of the next decade. ESA will build a trace-gas orbiter, able to map plumes of methane in the atmosphere, for launch in 2016.

A major component of Europe's ExoMars rover mission is being dropped to contain costs.