Cosmology

Cosmology news, blogs, and links for Science and Physics buffs. Cosmology is the study of the Universe in its totality. Big bang, expanding universe, cosmic radiation. All discussed here.

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Leonid Meteor Shower Peaks Tuesday, November 17, 2009....

Written by

TwinTalker on

From: www.ireport.com

November 12, 2009 This year, the Leonid meteor shower best viewing will be in the hours before dawn on November 17, according to the editors of StarDate magazine. There is uncertainty on the intensity of this year’s shower. Viewers will definitely see a dozen or more meteors per hour. Some astronomers predict, however, that the rate could be greater than 100. The Moon will not wash out any meteors: It rises after daybreak, and in its almost-new phase will be nearly invisible. Leonid meteors appear to fall from the constellation Leo, the lion, but they are not associated with it. They are leftover debris ... Read Full Story

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Vampire Star- Ticking Stellar Time Bomb Identified

Written by

switbd on

From: sciencetech-search.blogspot.com

Using ESO's Very Large Telescope and its ability to obtain images as sharp as if taken from space, astronomers have made the first time-lapse movie of a rather unusual shell ejected by a "vampire star," which in November 2000 underwent an outburst after gulping down part of its companion's matter. This enabled astronomers to determine the distance and intrinsic brightness of the outbursting object. It appears that this double star system is a prime candidate to be one of the long-sought progenitors of the exploding stars known as Type Ia supernovae, critical for studies of dark energy. "One of the major problems in modern ... Read Full Story

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Interstellar Highway Patrol: Stars Racing One-Million MPH Through Milky Way's Halo May Be From Other Galaxies

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CaseyKazan on

From: www.dailygalaxy.com

Interstellar Highway Patrol take note: MIT astronomers announced that stars of a recently discovered type, tagged ultracool subdwarfs, take some pretty wild rides reaching speeds of one million mph as they orbit around the Milky Way, following paths very different from those of typical stars. One of them may actually be a visitor that originated in another galaxy. The results of new MIT research clarifies the origins of these peculiar, faint stars, and may provide new details on the types of stars the Milky Way has acquired from other galaxies. Ultracool subdwarfs were first recognized as a unique class of stars in 2003, and ... Read Full Story

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Interstellar Highway Patrol: Stars Racing One-Million MPH Through Milky Way's Halo May Be From Other Galaxies

Written by

CaseyKazan on

From: www.dailygalaxy.com

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Leonid Meteor Shower 2009 to Peak on November 17

Written by

chrismonty on

From: www.blippitt.com

The Leonid Meteor Shower 2009 is here. The annual spectacle can be seen November 13-20, but the peak of meteoric activity will occur on Tuesday morning, November 17, 2009. The best time to spot meteors will be after 1:30 a.m. EST and prior to sunrise. This year, the view should be spectacular as the moon won't be visible from Earth so the skies will be even darker than usual and meteors should be easier to spot. These meteors begin as tiny bits of debris ejected by Comet 55P/Tempel-Tuttle during its many orbits around our Sun. Over the years, these particles spread out along the ... Read Full Story

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