News tagged with spitzer space telescope

The Cosmic Distance Scale

(PhysOrg.com) -- In 1908, Harvard astronomer Henrietta Swan Leavitt discovered that a class of stars called Cepheids have brightnesses that vary regularly with periods that are directly related to their intrinsic ...

Jan 29, 2010 4.6 / 5 (19) 0 | with audio podcast

Surveying the X-ray Sky

(PhysOrg.com) -- Astronomers have only modest laboratories to probe the mysteries of the cosmos. Mostly they have to rely on meticulous and clever observations of remote phenomena.

Jan 11, 2010 5 / 5 (6) 0 | with audio podcast

Making Jupiters

IC348 is a glowing nebula of young stars, hot gas, and cold dust seen in the direction of the constellation of Perseus. It is the nearest rich cluster of young stars to earth, being only about one thousand ...

Aug 21, 2009 4.7 / 5 (3) 3

Trigger-Happy Star Formation

(PhysOrg.com) -- A new study from two of NASA's Great Observatories provides fresh insight into how some stars are born, along with a beautiful new image of a stellar nursery in our Galaxy. The research shows ...

Aug 12, 2009 5 / 5 (4) 1