Sand dunes on Mars behave like those on Earth ... By imaging the dunes, scientists can figure out how much CO2 frost forms on the dunes during the Martian winter. When temperatures grow warmer in the ...

NASA's Mars Perseverance rover acquired this image ... were made in the ancient past when minerals carried by water cemented the rock. Figure A shows a tighter view of the flower-like feature.

But she is optimistic. “The chances of finding something on Mars that’s interesting are high,” she says. “We will have the ability to figure out what it is, one way or another.” ...

Combs, Maori, New Zeland; Admiralty Islands; North Solomon Islands; Tonga Isalnds, Dyak, N. Borneo; Burrard Islet, British Columbia; Southern Nigeria; Sudan. In the ...

The Perseverance rover is building up a stash of rocks on Mars that could contain the first-ever signs of alien life, but NASA is scrambling to figure out how it will bring them back to Earth for ...

Mars has long posed a challenge to landers because ... $5.5 billion to $7.7 billion — a “far cry” from the original figure, Nelson said. “Pursuing two potential paths forward will ensure ...