mrt 082013
 
Water Channels Discovered on Mars

  New maps of the subsurface of Mars show for the first time buried channels below the surface of the red planet. Mars is considered to have been cold and dry over the past 2.5 billion years, but these channels suggest evidence of flooding. Fig. 1. The location of the ~ 1000 km Marte Vallis [continue reading]

dec 292012
 
Anne's Picture of the Day: Elephant on Mars

December 29, 2012 An Elephant on Mars?! Image Credit: NASA/JPL/University of Arizona This “elephant” is actually a dried flood of lava over the surface of Elysium Planitia, a huge plain near the equator of Mars, which is the youngest flood-lava province and the second largest volcanic region on Mars, after Tharsis. It’s a classic case [continue reading]

apr 062012
 
The pit-chains of Mars – a possible place for life?

The latest images released from ESA’s Mars Express reveal a series of ‘pit-chains’ on the flanks of one of the largest volcanoes in the Solar System. Depending on their origin, they might be tempting targets in the search for microbial life on the Red Planet.  Pit-chains in Tharsis Tractus Catena is shown here in a [continue reading]

mrt 282012
 
Mars' Vast Fields of Glass

The surface of Mars exhibits numerous lava flows and other signs of effusive volcanism. Although models suggest that explosive volcanism should also have produced extensive deposits, direct evidence for large-scale explosive volcanism has been scarce.A new study by Briony Horgan and James F. Bell III at Arizona State University of the mineralogy of dark regions [continue reading]