Mars rover scientist hopes to find more evidence of liquid water

Although the existence of liquid water on the Red Planet was confirmed by NASA's Mars Reconnaissance Orbiter (MRO) last year, the scientific community is gearing up for a more thorough analysis of the topic that could be ...

Grail data points to possible lava tubes on the moon

For years, scientists have been hunting for the stable lava tubes that are believed to exist on the moon. A remnant from the moon's past, when it was still volcanically active, these underground channels could very well be ...

Mars longevity champion launched 15 years ago

The NASA spacecraft that was launched 15 years ago this week carried the name 2001 Mars Odyssey and the hopes for reviving a stymied program of exploring the Red Planet.

Image: Alluvial fans in Saheki Crater, Mars

Alluvial fans are gently-sloping wedges of sediments deposited by flowing water. Some of the best-preserved alluvial fans on Mars are in Saheki Crater, an area that has been imaged many times previously.

Image: Jarosite in the Noctis Labyrinthus Region of Mars

This image, acquired on Nov. 24, 2015 by the High Resolution Imaging Science Experiment (HiRISE) camera aboard NASA's Mars Reconnaissance Orbiter, shows the western side of an elongated pit depression in the eastern Noctis ...

How long is a day on Mars?

Mars represents something of a conundrum for scientists. In many respects, it is significantly different from Earth. It's cold, it's dry, there is little atmosphere or precipitation to speak of, and nothing grows there. ...

Image: Layers and fractures in Ophir Chasma, Mars

Ophir Chasma forms the northern portion of the vast Mars canyon system Valles Marineris, and this image, acquired on Aug. 10, 2015, by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance ...

Geologists help NASA plan for human exploration of Mars

This week, NASA is assembling scientists from across the country in Houston to start thinking about locations on Mars that would be good candidates for human exploration. Among those gathering for the Landing Sites/Exploration ...

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