Nili Fossae region of Mars is comprised of "parallel trenches hundreds of metres deep and several hundred kilometres long," ...

The European Space Agency has released new images of a rare "butterfly" crater on the Red Planet. The bug-like structure ...

As the world's largest radio/radar telescope when it was commissioned in 1963, the Arecibo Observatory saw countless firsts, from revealing the ...

For decades, the search for life on Mars has been a story of hints and maybes, of chemical curiosities that stopped just ...

Mars clocks tick 477 microseconds faster per Earth day, complicating future missions and interplanetary timekeeping.

The comet will come much closer to Jupiter in March, zipping within 33 million miles. It will be the mid-2030s before it ...