A new map of Mars' gravity made with three NASA spacecraft is the most detailed to date, providing a revealing glimpse into the hidden interior of the Red Planet. Satellites always orbit a planet’s center of mass, but can be pulled slightly off course by the gravity of massive features like Olympus Mons, the solar system’s tallest mountain. Now, scientists at Goddard Space Flight Center have used these slight orbital fluctuations to map the gravity field of Mars, providing fresh insights into its crustal thickness, deep interior, and seasonal variations of dry ice at the poles. The new gravity map will also help to put future spacecraft into orbit more precisely, ensuring that the Mars fleet continues to return a massive trove of data.
In July 1994, the Hubble Space Telescope was poised to use its newly fixed optics to observe one of the most impressive astronomical events of the century - the 21 fragments of Comet Shoemaker-Levy...
Scientists have long suspected the solar wind of stripping the Martian atmosphere into space, a process that may have turned Mars from a blue world early in its history into the red planet that we ...
El Niño years can have a big impact on the littlest plants in the ocean, and NASA scientists are studying the relationship between the two. Ocean color maps, based on a month's worth of satellite d...
Engineers lift the James Webb Space Telescopes cameras and spectrographs out of the Space Environment Simulator at NASAs Goddard Space Flight Center in Greenbelt, Maryland. These vital parts of the...
Arctic sea ice appears to have reached a record low wintertime maximum extent for the second year in a row, according to scientists at the National Snow and Ice Data Center and NASA. This short ani...
NASA takes you on a world tour with this animation as we kick off major new field campaigns to study regions of critical change from land, sea and air.
A new map of Mars' gravity made with three NASA spacecraft is the most detailed to date, providing a revealing glimpse into the hidden interior of the Red Planet. Satellites always orbit a planet’s...
Students from West Virginia to New Hampshire showed off their scientific research as part of the GLOBE program in a science fair held Friday, March 11, 2016 at NASA's Goddard Space Flight Center in...
College students in Boston are getting the chance to help NASA explore an asteroid. These student scientists have built an instrument called REXIS, which will fly on the OSIRIS-REx spacecraft that ...
This winter, areas across the globe experienced a shift in rain patterns due to the natural weather phenomenon known as El Niño. New NASA visualizations of rainfall data show the various changes to...