News tagged with infrared radiation

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Hubble finds telltale fireball after gamma ray burst

(Phys.org) —NASA's Hubble Space Telescope has provided the strongest evidence yet that short-duration gamma-ray bursts are triggered by the merger of two small, super-dense stellar objects, such as a pair ...

Aug 03, 2013
4.9 / 5 (28) 24 | with audio podcast

Probing hydrogen under extreme conditions

(Phys.org) -- How hydrogen--the most abundant element in the cosmos--responds to extremes of pressure and temperature is one of the major challenges in modern physical science. Moreover, knowledge gleaned ...

Apr 13, 2012
5 / 5 (4) 4 | with audio podcast

Asteroid Caught Marching Across Tadpole Nebula

(PhysOrg.com) -- A new infrared image from NASA's Wide-field Infrared Survey Explorer, or WISE, showcases the Tadpole nebula, a star-forming hub in the Auriga constellation about 12,000 light-years from Earth. ...

May 13, 2010
4.6 / 5 (14) 0 | with audio podcast

Galaxy Cores to Crash in a Few Million Years

(PhysOrg.com) -- A new image from NASA's Spitzer Space Telescope offers a rare view of an imminent collision between the cores of two merging galaxies, each powered by a black hole with millions of times the ...

Mar 16, 2009
4.5 / 5 (23) 3

Infant galaxies -- small and hyperactive

Galaxies, including our own Milky Way, consist of hundreds of billions of stars. How did such gigantic galactic systems come into being? Did a central region with stars first form then with time grow? Or did ...

Feb 05, 2009
4.6 / 5 (11) 3

Zeroing in on Hubble's constant

(PhysOrg.com) -- In the early part of the 20th Century, Carnegie astronomer Edwin Hubble discovered that the universe is expanding. The rate of expansion is known as the Hubble constant. Its precise value ...

Jan 05, 2009
4.3 / 5 (12) 0