Meteorite Tells Us About Water on Mars 4.4 Billion Years Ago

Meteorites often offer terrific glimpses into worlds we are unable to otherwise access.  Sometimes those worlds are simply fragments of asteroids that didn’t burn up when they entered the atmosphere.  But sometimes, they come from the Moon or Mars.  Part of what makes these types of meteorites interesting is that they don’t necessarily come from …

Astronauts Could Use the ScanMars Device to Search for Water on Mars

There’s solid evidence for the existence of water on Mars, at least in frozen form at the planet’s poles. And a more recent study confirms the existence of liquid water at the south pole. But visitors to Mars will need to know the exact location of usable water deposits at other Martian locations. A ground-penetrating …

Astronomy Cast Ep. 387: Water on Mars… Again

Have you heard the big news? NASA has reported that Mark Whatney is alive and well on the surface of Mars. No, wait, they’ve reported that there’s water on Mars. Didn’t they already report this? Today we’ll update you on the latest discovery and what this means for the search for life on Mars.

Weekly Space Hangout – Oct 2, 2015: Water on Mars, Blood Moon Eclipses, and More Pluto!

Host: Fraser Cain (@fcain) Guests: Morgan Rehnberg (cosmicchatter.org / @MorganRehnberg ) Pamela Gay (cosmoquest.org / @cosmoquestx / @starstryder) Kimberly Cartier (@AstroKimCartier ) Brian Koberlein (@briankoberlein / briankoberlein.com) Alessondra Springmann (@sondy)

Warm, Flowing Water on Mars Was Episodic, Study Suggests

Though the surface of Mars is a dry, dessicated and bitterly cold place today, it is strongly believed that the planet once had rivers, streams, lakes, and flowing water on its surface. Thanks to a combination of spacecraft imagery, remote sensing techniques and surface investigations from landers and rovers, ample evidence has been assembled to support this theory. …

Weekly Space Hangout – September 27, 2013: Buran, Comet ISON, Water on Mars

Is it Friday already? Then it’s time for another Weekly Space Hangout. Join a team of dedicated space journalists to discuss the big space and astronomy news stories that broke this week. This time around, we discussed Amy Shira Teitel’s Buran article, ISON Watch 2013, and the re-re-discovery of water on Mars. Host: Fraser Cain …

Hieroglyphic-like Features Point to Past Subsurface Water on Mars

Although these strange features on Mars look a bit like hieroglyphics or geoglyphs such as the mysterious Nazca lines on Earth, they are completely natural features, ones that are found on Earth too. This is one of the latest images from the HiRISE camera on the Mars Reconnaissance Orbiter. Called ‘rootless cones,’ they form on …

A River Ran Through It: Why Do They Think There Was Once Water on Mars?

Why is everyone so excited about these dusty Mars rocks? This week’s big news was the announcement of evidence for flowing water on Mars, based on images of what appear to be smooth river rock-type pebbles found by Curiosity. Of course that’s a big statement to make, and for good reason — identifying water, whether …