Mars Express

A spectacular mosaic of the south polar region of Mars, taken by Mars Express in December 2014. Credit: ESA/DLR/FU Berlin/J. Cowart, CC BY-SA 3.0

So is there liquid water under the Martian ice cap or not?

Two papers come out nearly simultaneously arguing both sides.

By Phil Plait 3 months ago

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Drying up a claim — maybe — of liquid water under the south pole of Mars

By Phil Plait 10 months ago

A spectacular mosaic of the south polar region of Mars, taken by Mars Express in December 2014. Credit: ESA/DLR/FU Berlin/J. Cowart, CC BY-SA 3.0

More liquid water found on — under — Mars!

By Phil Plait 1 year ago

A 300-km-long swath of Mars near its north pole imaged by the ESA Mars Express. Credit: ESA/DLR/FU Berlin, CC BY-SA 3.0 IGO

How about a scoop of cinnamon caramel Martian polar ice cream?

By Phil Plait 1 year ago

The Martian moon Phobos observed by the Mars Reconnaissance Orbiter, showing the giant crater Stickney and odd grooves covering its surface. Credit: NASA/JPL-Caltech/University of Arizona

Flyby video of a Martian moon

By Phil Plait 2 years ago

A perspective view of Korolev crater on Mars. Credit: ESA/DLR/FU Berlin, CC BY-SA 3.0 IGO

A White Christmas for the Red Planet

By Phil Plait 3 years ago

Sand dunes ripple across the floor of a graben in Cerberus Fossae on Mars in this enhanced color image (Mars is dark grey and ochre, not blue). Credit: NASA/JPL-Caltech/University of Arizona

Mars is cracked!

By Phil Plait 3 years ago

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Have we finally found liquid water on (well, under) Mars? Maaaaaaaybe.

By Phil Plait 3 years ago