News tagged with disk galaxies


Iconic rings and flares of galaxies created by violent, intergalactic collisions

Space & Earth / Astronomy

created Nov 21, 2008 | popularity 4.5 / 5 (8) | comments 5

The bright pinwheels and broad star sweeps iconic of disk galaxies such as the Milky Way might all be the shrapnel from massive, violent collisions with other galaxies and galaxy-size chunks of dark matter, according to a ...





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Swift, XMM-Newton satellites tune into a middleweight black hole

Swift, XMM-Newton satellites tune into a middleweight black hole

Space & Earth / Astronomy

created 15 hours ago | popularity 5 / 5 (1) | comments 1

(PhysOrg.com) -- While astronomers have studied lightweight and heavyweight black holes for decades, the evidence for black holes with intermediate masses has been much harder to come by. Now, astronomers ...


'Dropouts' pinpoint earliest galaxies

'Dropouts' pinpoint earliest galaxies

Space & Earth / Astronomy

created Nov 06, 2009 | popularity 4.2 / 5 (10) | comments 13

Astronomers, conducting the broadest survey to date of galaxies from about 800 million years after the Big Bang, have found 22 early galaxies and confirmed the age of one by its characteristic hydrogen signature ...


In a Galaxy Far, Far Away...

In a Galaxy Far, Far Away...

Space & Earth / Astronomy

created Nov 06, 2009 | popularity 4.8 / 5 (6) | comments 18

(PhysOrg.com) -- Astronomers have published the discovery of the farthest known object in the cosmos: a star that exploded when the universe was only 630 million years old -- only 4.6% of its current age. ...


New type of supernova explosion reported; predicted by theoretical physicists at UCSB

Space & Earth / Astronomy

created Nov 05, 2009 | popularity 4.2 / 5 (5) | comments 0

A new class of supernova was discovered by scientists at Berkeley and may be the first example of a new type of exploding star. A team of astrophysicists at UC Santa Barbara had predicted this kind of explosion in their t ...


Rapid supernova could be new class of exploding star

Rapid supernova could be new class of exploding star

Space & Earth / Astronomy

created Nov 05, 2009 | popularity 4.7 / 5 (17) | comments 5

(PhysOrg.com) -- An unusual supernova rediscovered in seven-year-old data may be the first example of a new type of exploding star, possibly from a binary star system where helium flows from one white dwarf ...


Toshiba Introduces 320GB 1.8-inch HDD

Toshiba Introduces 320GB 1.8-inch HDD

Electronics / Hardware

created Nov 05, 2009 | popularity 4 / 5 (2) | comments 0

Toshiba Corporation today introduced a new line up of 1.8-inch HDDs with a maximum capacity of 320GB, the highest yet announced by the industry, targeted at thin and light mobile PCs and portable external ...


Unsettled Youth: Spitzer Observes a Chaotic Planetary System

Unsettled Youth: Spitzer Observes a Chaotic Planetary System

Space & Earth / Astronomy

created Nov 04, 2009 | popularity 4.1 / 5 (7) | comments 0

(PhysOrg.com) -- Before our planets found their way to the stable orbits they circle in today, they wiggled and jostled about like unsettled children. Now, NASA's Spitzer Space Telescope has found a young ...


Stars Fueled by Dark Matter Could Hold Secrets to the Universe

Stars Fueled by Dark Matter Could Hold Secrets to the Universe

Physics / General Physics

created Nov 03, 2009 | popularity 4.4 / 5 (54) | comments 43

(PhysOrg.com) -- The first stars in the universe may have been very different from the stars we see today, yet they may hold clues to understanding some of the mysterious features of the universe. These "dark ...


Shedding light on the cosmic skeleton

Shedding Light on the Cosmic Skeleton

Space & Earth / Astronomy

created Nov 03, 2009 | popularity 4.8 / 5 (22) | comments 7

(PhysOrg.com) -- Astronomers have tracked down a gigantic, previously unknown assembly of galaxies located almost seven billion light-years away from us. The discovery, made possible by combining two of the ...


Fermi telescope detects gamma-ray from 'star factories' in other galaxies

Fermi Telescope Detects Gamma-Ray From 'Star Factories' in Other Galaxies

Space & Earth / Astronomy

created Nov 02, 2009 | popularity 4 / 5 (2) | comments 0

Nearby galaxies undergoing a furious pace of star formation also emit lots of gamma rays, say astronomers using NASA's Fermi Gamma-ray Space Telescope. Two so-called "starburst" galaxies, plus a satellite ...



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