(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 luminosities.
Astronomy
Jan 29, 2010
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The back up system of HIFI, the state of the art Dutch space instrument on ESA's Herschel space telescope, has been switched on successfully.
Space Exploration
Jan 15, 2010
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The premiere observatory of the next decade, the James Webb Space Telescope, will launch in 2014 in search of "big game"--namely, the first stars and galaxies ever formed in our Universe. But the "little game" could turn ...
Astronomy
Jan 14, 2010
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(PhysOrg.com) -- NASA's Wide-field Infrared Survey Explorer, or WISE, has captured its first look at the starry sky that it will soon begin surveying in infrared light.
Astronomy
Jan 6, 2010
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A University of British Columbia astronomer has produced the most detailed images of deep space from 12 billion years ago, using data from the European Space Agency's Herschel Space Observatory.
Astronomy
Jan 6, 2010
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(PhysOrg.com) -- NASA's Spitzer Space Telescope has captured an action-packed picture of the nearby Small Magellanic Cloud, a small galaxy that looks like a wispy cloud when seen from Earth.
Astronomy
Jan 5, 2010
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(PhysOrg.com) -- NASA's Hubble Space Telescope has broken the distance limit for galaxies and uncovered a primordial population of compact and ultra-blue galaxies that have never been seen before.
Astronomy
Jan 5, 2010
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(PhysOrg.com) -- The constellation of Vela (visible only from the southern hemisphere) contains a set of giant clouds of gas and dust known collectively as the Vela Molecular complex.
Astronomy
Jan 4, 2010
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(PhysOrg.com) -- Engineers and scientists say the maneuver went off without a hitch, and everything is working properly. The mission's "first-light" images of the sky will be released to the public in about a month, after ...
Space Exploration
Dec 30, 2009
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(PhysOrg.com) -- Using first observations with the PACS Instrument on board ESA’s Herschel Space Telescope, scientists from the Max Planck Institute for Extraterrestrial Physics and other institutions have for the first ...
Astronomy
Dec 16, 2009
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