News tagged with cosmic microwave background

Abuse from other universes -- a second opinion

At the end of last year, there was a flurry of activity from astronomers Gurzadyan and Penrose that considered the evidence of alternate universes or the existence of a universe prior to the Big Bang and suggested ...

Oct 10, 2011
4.2 / 5 (13) 2

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

The most massive distant object known

(PhysOrg.com) -- Galaxies often occur in groups. Our own Milky Way galaxy, for example, and its local neighborhood with about fifty galaxies are at the edge of the Virgo Cluster, a collection of somewhere ...

Apr 11, 2011
4.9 / 5 (12) 61 | with audio podcast

UBC physicists make atoms and dark matter add up

Physicists at the University of British Columbia and TRIUMF have proposed a unified explanation for dark matter and the so-called baryon asymmetry -- the apparent imbalance of matter with positive baryon charge and antimatter ...

Nov 29, 2010
4 / 5 (14) 14 | with audio podcast

Scientists glimpse universe before the Big Bang

(PhysOrg.com) -- In general, asking what happened before the Big Bang is not really considered a science question. According to Big Bang theory, time did not even exist before this point roughly 13.7 billion ...

Nov 23, 2010 weblog
4.7 / 5 (108) 174 | with audio podcast