Latest Planum Boreum Stories
According to research using images from a NASA orbiter, sand dunes in a vast area of northern Mars long thought to be frozen in time are changing with both sudden and gradual motions.
PASADENA, Calif., May 26 /PRNewswire-USNewswire/ -- Data from NASA's Mars Reconnaissance Orbiter (MRO) have helped scientists solve a pair of mysteries dating back four decades and provided new information about climate change on the Red Planet. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) The Shallow Radar, or SHARAD, instrument aboard MRO revealed subsurface geology allowing scientists to reconstruct the formation of a large chasm and a series of spiral troughs on the...
Scientists have reconstructed the formation of two curious features in the northern ice cap of Marsâ€”a chasm larger than the Grand Canyon and a series of spiral troughsâ€”solving a pair of mysteries dating back four decades while finding new evidence of climate change on Mars.
ESAâ€™s Mars Express orbiter imaged the snow-laden region of Rupes Tenuis on the martian north pole on July 29, 2008.
An odd, solitary hill rising part-way down an eroding slope in Mars' north polar layered terrain may be the remnant of a buried impact crater.
Scientists running the High Resolution Imaging Science Experiment, known as HiRISE, on NASA's Mars Reconnaissance Orbiter have processed more details in an amazing image their camera captured as the Phoenix spacecraft descended through Mars' atmosphere during its landing on May 25, 2008.
Even in the clearest, bluest sky on Earth, there is still water vapor in our atmosphere. If you could condense all the water vapor out of the atmosphere above you, it would form a layer of water two centimeters deep. On Mars today, there is also water vapor in the atmosphere but it would create a layer just 10 micrometers thick.
During the past month, Mars has doubled in brightness and it is putting on a nice show for backyard stargazers.
The amount of water trapped in frozen layers over Mars' south polar region is equivalent to a liquid layer about 11 metres deep covering the planet.
This image was built by the OMEGA Visible and Infrared Mineralogical Mapping Spectrometer on board ESAâ€™s Mars Express, when the spacecraft was flying at about 6000 kilometres over the south pole.
- An uxorious, effeminate, or spiritless man.
- A timorous, cowardly fellow.