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Latest Martian Gullies Stories

Martian Dry Ice Gullies Formed By Seasonal CO2 Freezing, Not Water
2014-07-11 09:09:01

Gerard LeBlond for redOrbit.com - Your Universe Online NASA’s Mars Reconnaissance Orbiter (MRO) continually makes high-resolution observations of the surface of Mars. Recent images have revealed that the gullies on the surface are mainly formed by seasonal freezing of carbon dioxide and not liquid water. The report has been published online in the journal Icarus. In 2000, the first reports on these gullies suggested the presence of water on Mars created them by erosion, the same way...

2014-07-10 16:20:59

WASHINGTON, July 10, 2014 /PRNewswire-USNewswire/ -- Repeated high-resolution observations made by NASA's Mars Reconnaissance Orbiter (MRO) indicate the gullies on Mars' surface are primarily formed by the seasonal freezing of carbon dioxide, not liquid water. http://photos.prnewswire.com/prnvar/20081007/38461LOGO The first reports of formative gullies on Mars in 2000 generated excitement and headlines because they suggested the presence of liquid water on the Red Planet, the...

Mars Crater May Have Been Wet In The Relatively Recent Past
2014-04-26 05:08:42

April Flowers for redOrbit.com - Your Universe Online Well preserved gullies and debris flow deposits in a crater on the southern hemisphere of Mars are providing new evidence through their geomorphological attributes that they were formed by the action of liquid water in relatively recent geological times, according to a new study from the University of Gothenburg. On Earth, water becomes a single-phase unit and a flow of debris is created when the sediment on a slope is saturated with...

Snowboarding Dry Ice On Martian Dunes
2013-06-12 08:58:14

[ Watch the Video: Dry Ice Moves on Mars ] April Flowers for redOrbit.com - Your Universe Online Hunks of dry ice — carbon dioxide — may glide down Martian sand dunes like miniature hovercraft, riding on cushions of gas and plowing furrows as they go, according to new research from NASA. The research team suggests that this process could explain an enigmatic class of gullies seen on Martian sand dunes, coming to this conclusion by examining images from NASA's Mars...

Did Dawn Mission Find Water-Carved Gullies On Vesta Asteroid?
2012-12-07 16:11:58

Michael Harper for redOrbit.com — Your Universe Online In 2007, NASA launched the Dawn Mission to study the asteroid Vesta and dwarf planet Ceres. Carrying a visible camera, a visible and infrared mapping spectrometer, and a gamma ray and neutron spectrometer, Dawn set out on an 8 year mission to gather a wealth of data from these two celestial bodies. Dawn arrived at the first stop in its journey, the asteroid Vesta, in June 2011 and recently departed for Ceres this...

Melt Water On The Red Planet Could Support Life
2012-11-16 16:47:39

Michael Harper for redOrbit.com — Your Universe Online Though Mars is 140 million miles away, it shares some similarities with Earth. Some of its landforms, for existence, closely resemble regions found here on Earth. It is by researching these similar landforms and landscapes that researchers are able to gather some assumptions about how these martian landscapes were formed. If the two areas look the same, perhaps they were created in the same way as well. Dr. Andreas...


Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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