<p></p> <p>Great balls of fire! NASA’s Hubble Space Telescope has detected superhot blobs of gas, each twice as massive as the planet Mars, being ejected near a dying star. The plasma
<p></p> <p>Fast-moving magnetic waves emanating from a distant supermassive black hole undulate like a whip whose handle is being shaken by a giant hand, according to a new study using data
AAVSO Alert Notice 503<br /> Request for regular monitoring of the symbiotic variable RT Cru<br /> August 6, 2014 <p>Current magnitude 12 -12.5.</p> <p>Dr. Margarita Karovska (Harvard-Smithsonian Center for Astrophysics) and colleagues have requested
<p style="text-align:center"></p> <p>Astronomers have used NASA’s Chandra X-ray Observatory and the European Space Agency’s (ESA’s) XMM-Newton to show a supermassive black hole six billion light years from Earth is spinning extremely
AAVSO Alert Notice 493<br /> Request to monitor BP Tau in support of Chandra X-ray observations<br /> December 18, 2013 <p>Dr. Hans Moritz Guenther (Harvard-Smithsonian Center for Astrophysics) has requested nightly observations of
AAVSO Alert Notice 485<br /> AG Dra monitoring requested for multiwavelength campaign<br /> June 20, 2013 <p>Dr. Andrea Dupree (Harvard-Smithsonian Center for Astrophysics), has requested AAVSO monitoring of the symbiotic variable AG Draconis
<p>Nearly a decade ago, NASA’s Chandra X-ray Observatory caught signs of what appeared to be a black hole snacking on gas at the middle of the nearby Sculptor galaxy. Now,
<p>Two X-ray space observatories, NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) and the European Space Agency’s XMM-Newton, have teamed up to measure definitively, for the first time, the spin rate of
AAVSO Alert Notice 452<br /> Simultaneous observations of SU Aur and AB Aur requested for XMM-Newton<br /> February 8, 2012 <p>Dr. Hans Moritz Guenther, Harvard-Smithsonian Center for Astrophysics, has requested bracketing and simultaneous
<p>Two studies appearing in the Aug. 25 issue of the journal Nature provide new insights into a cosmic accident that has been streaming X-rays toward Earth since late March. NASA’s