This site is intended for students age 14 and up, and for anyone interested in learning about our universe.

Brown Dwarfs Until the last few years, brown dwarfs inhabited the undiscovered country between stars and planets. Their mass was too small for them to be stars and too large for planets. They were expected to be dim, a thousand times less luminous than the sun, and relatively cool, with surface temperatures less than 2500 degrees Celsius. Because of their intrinsic faintness and low temperature, ...

Library of IUE NEWSIPS SWP Echelle Spectra for White Dwarfs Introduction This site contains final processed IUE SWP echelle spectra for all 55 hot white dwarfs from the IUE Final Archive. These spectra are processed versions of the 213 NEWSIPS MXHI files as well as all the coadded spectra discussed in Holberg, Barstow and Sion (1998). This page is organized by the McCook and Sion (1998) WD ...

August 12, 2002 go Advanced Search TODAY'S NEWS EXPLORE ASK THE EXPERTS QUICK POLL FEATURE ARTICLES TECHBIZ NANOTECHNOLOGY CURRENT ISSUE UPCOMING ISSUE PAST ISSUES FEATURE ARTICLE April 2000 issue The Discovery of Brown Dwarfs Less massive than stars but more massive than planets, brown dwarfs were long assumed to be rare. New sky surveys, however, show that the objects may be as common as stars.

Contact Steve Roy Media Relations Department (256) 544-0034 steve.roy@msfc.nasa.gov Delores Beasley Nasa Headquarters (202) 358-1753 Wallace Tucker Chandra X-ray Observatory Center (617) 496-7998 The Web Photos Fact Sheet More Chandra News E-mail Get releases sent directly to you! Contact: judy.pettus@msfc.nasa.gov For Release: July 11, 2000 Release: 00-206 Chandra captures flare from brown ...