A new study out of the U.K. has found evidence that large rivers once flowed in the Arabia Terra section of Mars, indicating that the planet could have been ‘warm and wet’ around 4 billion years ago.
Astronomers world-wide are gearing up for what NASA calls a “once in a lifetime” event: the Comet Siding Spring will swing past Mars on its maiden voyage through the solar system in the early hours next Monday (AEDT), and thanks to a fleet of spacecraft and rovers on and around the Red Planet, we’ll have a front row view.