feb 022013
 
New Method of Weighing Supermassive Black Holes

  In a letter to Nature, an international team of astronomers, including Marc Sarzi from the University of Hertfordshire, report the exciting discovery of a new way to measure the mass of supermassive black holes in galaxies. By measuring the speed with which carbon monoxide molecules orbit around such black holes, this new research opens [continue reading]

dec 232012
 
Stellar Patrons of Milky Way Bar Identified

  University of Virginia scientists associated with the Sloan Digital Sky Survey III, or SDSS-III, have announced the discovery of hundreds of stars rapidly moving together in long, looping orbits around the center of our Milky Way galaxy. An artist’s impression of what the Milky Way might look like viewed from above. The small blue [continue reading]

jul 232012
 
Unexpectedly Slow Motions Below the Sun's Surface

  New observations of seismic oscillations on the Sun’s surface from NASA’s SDO mission challenge our understanding of interior solar dynamics. Pattern of convection at the surface of the Sun observed by the SDO/HMI instrument. Credit: MPS/NASA The interior motions of the Sun are much slower than predicted. Rather than moving at the speed of [continue reading]