dec 012013
 
The Oldest Brown Dwarfs in our Galaxy Discovered

  A team of astronomers led by Dr David Pinfield at the University of Hertfordshire have discovered two of the oldest brown dwarfs in our Milky Way galaxy. These ancient objects are moving at speeds of 100-200 kilometers per second, much faster than normal stars and other brown dwarfs and are thought to have formed [continue reading]

sep 062013
 
Coldest Brown Dwarfs Blur Lines between Stars and Planets

  Astronomers are constantly on the hunt for ever-colder star-like bodies, and two years ago a new class of objects was discovered by researchers using NASA’s WISE space telescope. However, until now no one has known exactly how cool their surfaces really are – some evidence suggested they could be room temperature. This artist’s conception [continue reading]

aug 242013
 
Anne's Image of the Day: Reflection Nebula NGC 1333

August 24, 2013 NGC 1333, a reflection nebula in Perseus Image Credit: R. A. Gutermuth (Harvard-Smithsonian CfA) et al./JPL-Caltech/NASA NGC 1333 is a diffuse reflection nebula of about 4 light-years across, that is less than a million years old. It is located only about 1,000 light-years away from Earth in the northern constellation of Perseus, [continue reading]

aug 202013
 
Free-Floating Planets May be Born Free

  Tiny, round, cold clouds in space have all the right characteristics to form planets with no parent star. New observations, made with Chalmers University of Technology telescopes, show that not all free-floating planets were thrown out of existing planetary systems. They can also be born free.   A part of the Rosette Nebula, a [continue reading]

jun 042013
 
Anne's Picture of the Day: Star Cluster IC 348

June 4, 2013 IC 348, an open star cluster in Perseus Image Credit: NASA, ESA, J. Muzerolle (STScI), E. Furlan (NOAO and Caltech), K. Flaherty (Univ. of Arizona/Steward Observatory), Z. Balog (Max Planck Institute for Astronomy), and R. Gutermuth (Univ. of Massachusetts, Amherst) IC 348 (also known as IC 1985) is a 2 million year old [continue reading]

apr 102013
 
Planets and Debris Disk Found Around Retired Star

  ESA’s Herschel space observatory has provided the first images of a dust belt – produced by colliding comets or asteroids – orbiting a sub-giant star known to host a planetary system. Kappa Coronae Borealis, based on Herschel PACS observations at 100 μm. North is up and east is left. The star is in the center of the frame [continue reading]