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New Map Released of Jupiter’s Moon, Ganymede

NASA February 13, 2014 More than 400 years after its discovery by astronomer Galileo Galilei, the largest moon in the solar system – Jupiter’s moon Ganymede – has finally claimed a spot on the map. A group of scientists led by Geoffrey Collins of Wheaton College has produced the first global geologic map of Ganymede, Jupiter’s seventh moon. The map ... Read More »

New Signs of Fresh Water Flows on Mars

NASA JPL February 10, 2014 NASA spacecraft orbiting Mars have returned clues for understanding seasonal features that are the strongest indication of possible liquid water that may exist today on the Red Planet. The features are dark, finger-like markings that advance down some Martian slopes when temperatures rise. The new clues include corresponding seasonal changes in iron minerals on the ... Read More »

Dramatic New Impact Crater Spotted on Mars

NASA JPL February 05, 2014 Space rocks hitting Mars excavate fresh craters at a pace of more than 200 per year, but few new Mars scars pack as much visual punch as one seen in a NASA image released today. The image from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter shows a crater about ... Read More »

Water Discovered Around Dwarf Planet Ceres

ESA January 22, 2014 ESA’s Herschel space observatory has discovered water vapour around Ceres, the first unambiguous detection of water vapour around an object in the asteroid belt. With a diameter of 950 km, Ceres is the largest object in the asteroid belt, which lies between the orbits of Mars and Jupiter. But unlike most asteroids, Ceres is almost spherical ... Read More »

Hubble Sees Clouds on Two Super-Worlds

NASA December 31, 2013 Scientists using NASA’s Hubble Space Telescope have characterized the atmospheres of two of the most common type of planets in the Milky Way galaxy and found both may be blanketed with clouds. The planets are GJ 436b, located 36 light-years from Earth in the constellation Leo, and GJ 1214b, 40 light-years away in the constellation Ophiuchus. ... Read More »

Water Vapor is Erupting From Europa’s South Pole

ESA Hubble December 12, 2013 The NASA/ESA Hubble Space Telescope has discovered water vapour erupting from the frigid surface of Jupiter’s moon Europa, in one or more localised plumes near its south pole. Europa is already thought to harbour a liquid ocean beneath its icy crust, making the moon one of the main targets in the search for habitable worlds ... Read More »

Clay Minerals Found on Europa Hint at Comet Impact

NASA JPL December 11, 2013 A new analysis of data from NASA’s Galileo mission has revealed clay-type minerals at the surface of Jupiter’s icy moon Europa that appear to have been delivered by a spectacular collision with an asteroid or comet. This is the first time such minerals have been detected on Europa’s surface. The types of space rocks that ... Read More »

MRO Reveals New Dark Markings on Mars – Possibly Water

NASA December 10, 2013 NASA’s Mars Reconnaissance Orbiter has revealed to scientists slender dark markings — possibly due to salty water – that advance seasonally down slopes surprisingly close to the Martian equator. “The equatorial surface region of Mars has been regarded as dry, free of liquid or frozen water, but we may need to rethink that,” said Alfred McEwen ... Read More »

Landsat 8 Satellite Discovers Coldest Spot on Earth

NASA December 09, 2013 What is the coldest place on Earth? It is a high ridge in Antarctica on the East Antarctic Plateau where temperatures in several hollows can dip below minus 133.6 degrees Fahrenheit (minus 92 degrees Celsius) on a clear winter night. Scientists made the discovery while analyzing the most detailed global surface temperature maps to date, developed ... Read More »

New Images of Dwarf Planet’s Eris and Sedna

In celebration of the 10th year anniversary of the discovery of dwarf planet Sedna, astronomer Gianluca Masi at the Virtual Telescope Project has released a new image of Sedna (image below), as well as a new image of dwarf planet Eris (image above). Sedna was discovered on November 14, 2003. Eris is currently the largest dwarf planet known and is ... Read More »

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