News tagged with background light

What time is it in the universe?

Flavor Flav knows what time it is. At least he does for Flavor Flav. Even with all his moving and accelerating, with the planet, the solar system, getting on planes, taking elevators, and perhaps even some ...

Aug 29, 2014
4 / 5 (52) 52

Do we need dark matter?

It's the biggest problem in physics: the matter we can see in the universe accounts for just five per cent of the observed gravity that holds galaxies together.

Nov 12, 2009
4.2 / 5 (22) 34

Ghost remains after black hole eruption

NASA's Chandra X-ray Observatory has found a cosmic "ghost" lurking around a distant supermassive black hole. This is the first detection of such a high-energy apparition, and scientists think it is evidence ...

May 28, 2009
4.8 / 5 (17) 15

Astronomers measure nearby Universe's 'cosmic fog'

Researchers from the Laboratoire Leprince-Ringuet (CNRS/École Polytechnique) have carried out the first measurement of the intensity of the diffuse extragalactic background light in the nearby Universe, ...

Jan 20, 2013
4.7 / 5 (14) 2 | with audio podcast

Physicist makes new high-res panorama of Milky Way

Cobbling together 3000 individual photographs, a physicist has made a new high-resolution panoramic image of the full night sky, with the Milky Way galaxy as its centerpiece. Axel Mellinger, a professor at ...

Oct 28, 2009
4.6 / 5 (14) 3

OLED brings out the shine

Screens made of organic light diodes promise unfathomable possibilities. Yet high production costs often prevent their widespread use. A new kind of production saves not only costs, but also improves the ...

Jun 07, 2013
5 / 5 (12) 1 | with audio podcast

Feeding galaxy caught in distant searchlight

An international group of astronomers that includes UC Santa Barbara astrophysicist Crystal Martin and former UCSB postdoctoral researcher Nicolas Bouché has spotted a distant galaxy hungrily snacking on ...

Jul 04, 2013
4.3 / 5 (12) 16 | with audio podcast

Baby universe picture brought closer to theory

Last year, the Planck Telescope revealed the most detailed picture of the cosmic microwave background, the relic radiation from the Big Bang. But this map contains features that challenge the standard model of cosmology, ...

Aug 04, 2014
4.5 / 5 (11) 0

Backgrounds

You’ve probably heard of the cosmic microwave background, but it doesn’t stop there. The as-yet-undetectable cosmic neutrino background is out there waiting to give us a view into the first seconds ...

Jun 28, 2011
5 / 5 (9) 3