News tagged with spitzer space telescope

Colony of Young Stars Shines in New Spitzer Image

(PhysOrg.com) -- Astronomers have their eyes on a hot group of young stars, watching their every move like the paparazzi. A new infrared image from NASA's Spitzer Space Telescope shows the bustling star-making ...

dateApr 01, 2010 in Astronomy
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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 ...

dateJan 29, 2010 in Astronomy
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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.

dateJan 11, 2010 in Astronomy
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Centuries-Old Star Mystery Coming to a Close

(PhysOrg.com) -- For almost two centuries, humans have looked up at a bright star called Epsilon Aurigae and watched with their own eyes as it seemed to disappear into the night sky, slowly fading before coming ...

dateJan 05, 2010 in Astronomy
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NASA to launch sky-mapping spacecraft

(AP) -- NASA's latest space telescope will scan the sky in search of never-before-seen asteroids, comets, stars and galaxies, with one of its main tasks to catalog objects posing a danger to Earth. The sky-mapping ...

dateDec 06, 2009 in Astronomy
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