Archive for the ‘universe’ Category
Thursday, November 1st, 2007
Arp 87 is a stunning pair of interacting galaxies. Stars, gas and dust flow from the large spiral galaxy, NGC 3808, forming an enveloping arm around its companion. The shapes of both galaxies have been distorted by their gravitational interaction. Arp 87 is located in the constellation of Leo, the ...
Posted in SpaceExploration, planets, scientists, universe | No Comments »
Tuesday, October 30th, 2007
A solar power panel ripped as it was being unfurled from a newly reinstalled girder on the International Space Station on Tuesday, forcing NASA to halt the operation and throwing expansion plans for the station into doubt.
NASA had called the array deployment critical to providing electricity for European and Japanese ...
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Tuesday, October 30th, 2007
The international prototype of a kilogram held at Sevres near Paris. Photograph: AFP/Getty
It is the only object in the universe with a mass of exactly 1kg, but to the great embarrassment of scientists it does not weigh the same as it used to.
The object in question is a cylindrical lump ...
Posted in ScienceNews, energy, research, universe | No Comments »
Sunday, October 28th, 2007
Astronomers have unmasked hundreds of black holes hiding deep inside dusty galaxies billions of light-years away.
The massive, growing black holes, discovered by NASA's Spitzer and Chandra space telescopes, represent a large fraction of a long-sought missing population. Their discovery implies there were hundreds of millions of additional black holes growing ...
Posted in SpaceExploration, human, planets, universe | No Comments »
Friday, October 26th, 2007
Jets of high-speed particles stab out from a supermassive black hole at the heart of an active galaxy.
Vast magnetic cocoons associated with galaxies whose black holes have stopped eating may be responsible for accelerating charged particles called cosmic rays to within a whisker of the speed of light.It could explain ...
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Thursday, October 18th, 2007
Most Powerful Supernova Ever Discovered: 100 Billion Times Brighter Than The Sun
Sloan Digital Sky Survey (SDSS) image of the field where supernova 2005ap was found, showing four nearby galaxies (A, B, C, and D) in December 2004. Right: Hobby-Eberly Telescope (HET) image of the same field about 2.5 months later, ...
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Thursday, October 18th, 2007
A black hole as heavy as almost 16 Suns has set a new weight record for black holes that form from collapsing stars. Its discovery suggests that there may be even heavier ones lurking out there, spawned in the death throes of the universe's most massive stars.
When a very massive ...
Posted in SpaceExploration, principles, research, universe | No Comments »
Wednesday, October 17th, 2007
NASA’s Hubble and Spitzer Space Telescopes have joined forces to discover nine of the smallest, faintest, most compact galaxies ever observed in the distant universe. Blazing with the brilliance of millions of stars, each of the newly discovered galaxies is a hundred to a thousand times smaller than our Milky ...
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Wednesday, October 17th, 2007
A bizarre galaxy thought to have started forming stars billions of years after its peers is not such a late bloomer after all, new Hubble observations reveal. Nonetheless, its primordial composition – resembling the first galaxies in the universe – remains a mystery.
In 2004, observations by the Hubble Space Telescope's ...
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Wednesday, October 17th, 2007
Newly released images of a double hurricane-like feature over Venus's south pole show that it is even more complex than first thought. Identifying the forces that shape it could help unlock the secrets of the planet's thick atmosphere, which keeps Venus scaldingly hot via a runaway greenhouse effect.
Scientists first noticed ...
Posted in climate, planets, universe | No Comments »
