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Artist’s conception of Pluto’s surface, with the distant Sun and largest moon Charon in the sky. The surface is frozen now, but evidence suggests that rivers and lakes of liquid nitrogen once flowed here. Image Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute/Alex Parker As has been discussed extensively now on AmericaSpace, […] 
Conceptual image of the two competing warm and cold models of early Mars. Image Credit: Robin D. Wordsworth The debate over whether Mars used to be warmer and wetter or colder and wetter earlier in its history has been a long and contentious one. Now, a new study suggests it may be the […] Artist’s conception of an ocean-covered aquaplanet. Image Credit: Christine Daniloff/MIT With so many exoplanets now being discovered on a regular basis by astronomers, the focus has turned to what number of them might be habitable for some kind of life. For life as we know it at least, that depends on a number […] |
 Next Launch NG-11 on a Antares 230 rocket from Wallops Island, VA scheduled for: 17 Apr 19 at 20:46 GMT 17 Apr 19 at 4:46pm Eastern 
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