A fresh look at 20-year-old data from the Mars Global Surveyor
mission lends support to the idea the moons of Mars formed after a large impact on the planet threw a lot of rock into orbit, according to a new study in the Journal of Geophysical Research: Planets, a publication of the American Geophysical Union.
This photo of Mars taken by the Mars Global Surveyor
shows water ice above the volcanoes on the planet.
In 2000, images from NASA's Mars Global Surveyor
revealed hundreds of these features, trailing down crater rims all over the Red Planet (S&T: Sept.
Mars Global Surveyor
: "Inca City" is part of a circular feature.
In the late 1990s, NASA's Mars Global Surveyor
spacecraft was sending back images of the Martian surface far sharper than those from earlier missions, like Mariner and Viking.
Los Alamos was responsible for the in situ science, including quantifying methane using tower-mounted ground-based sensors and a c Picarro Global Surveyor
vehicle for real-time assessment of methane concentrations and its isotopic composition, while conducting driving surveys.
Their assessment is based on images and topographic data from NASA's Mars Odyssey, Mars Global Surveyor
and Mars Reconnaissance Orbiter spacecraft, as well as the European Space Agency's Mars Express Orbiter.
Also included are two loosely related papers on solar and wind energy and the Mars Global Surveyor
. The articles, written by authors associated with universities from a variety of countries around the world, range from six to sixty pages in length and vary in their depth of notation and citation.
The maps contain 74,000 images from Mars Global Surveyor
's Mars Orbiter Camera and more than 13,000 high-resolution images of Mars taken by the Mars Reconnaissance Orbiter's High Resolution Imaging Science Experiment (HiRISE) camera.
DATA from NASA's Mars Global Surveyor
and Odyssey missions has revealed that the ice caps of Mar's South Pole have been diminishing for three summers in a row.
Another NASA spacecraft, the Mars Global Surveyor
, later showed that the planet's crust is also thicker in the south than in the north.