<p><a href="http://www.nasa.gov/sites/default/files/thumbnails/image/tn-p_lorri_fullframe_color.png" target="_blank"></a></p> <p>NASA’s New Horizons spacecraft is at Pluto.</p> <p>After a decade-long journey through our solar system, New Horizons made its closest approach to Pluto Tuesday, about 7,750 miles above the
<p style="text-align: center;"><a href="http://www.esa.int/var/esa/storage/images/esa_multimedia/images/2014/10/mars_and_comet_siding_spring/14982454-1-eng-GB/Mars_and_comet_Siding_Spring.jpg" target="_blank"></a></p> <p>This weekend, Comet Siding Spring (C/2013 A1) will make a historically close approach to Mars. Satellites and rovers will get an eye-full as the green comet
<p style="text-align: center;"></p> <p>NASA’s extensive fleet of science assets, particularly those orbiting and roving Mars, have front row seats to image and study a once-in-a-lifetime comet flyby on Sunday, Oct. 19.</p> <p>Comet
<p style="text-align:center"></p> <p> It was a fairy-tale ending to a tense chapter in the story of the Rosetta space mission this evening as ESA heard from its distant spacecraft for the
<p style="text-align:center"></p> <p>Observations indicate that the sudden exposure to strong sunlight when the currently dark side of the comet gets closer to the Sun could trigger huge outbursts.</p> <p>Scientists are unraveling more
<p>Amateur astronomers using backyard telescopes were the first to detect two small objects that burned up in Jupiter’s atmosphere on June 3 and Aug. 20.</p> <p>Professional astronomers at NASA and other