<p>About three times a second, a 10,000-year-old stellar corpse sweeps a beam of gamma-rays toward Earth. Discovered by NASA’s Fermi Gamma-ray Space Telescope, the object, called a pulsar, is the
<p>About three times a second, a 10,000-year-old stellar corpse sweeps a beam of gamma-rays toward Earth. Just discovered by NASA’s Fermi Gamma-ray Space Telescope, the object, called a pulsar, is
AAVSO Alert 387:<br /> V1721 Aql (Nova Aql 2008)<br /> October 3, 2008 <p><strong>Event: </strong>Nova in Aquila</p> <p><strong>Discovered by:</strong> K. Itagaki (Yamagata, Japan)</p> <p><strong>Discovery date:</strong> 2008 September 22.5 UTC (JD 2454732.0)</p> <p><strong>Discovery magnitude:</strong> m = 14.0
<p>Scientists using NASA’s RHESSI spacecraft have measured the roundness of the sun with unprecedented precision, and they find that it is not a perfect sphere. During years of high solar
<p>WASHINGTON — A NASA spacecraft will conduct the second of three flybys of Mercury on Oct. 6 to photograph most of its remaining unseen surface and collect science data.</p> <p>The MErcury