Could the famed "Big Bang" theory need a revision? A group of theoretical physicists suppose the birth of the universe could have happened after a four-dimensional star collapsed into a black hole and ejected debris.
Astronomy
Sep 19, 2013
229
19
(PhysOrg.com) -- Cosmologists Alan Coley from Canada's Dalhousie University and Bernard Carr from Queen Mary University in London, have published a paper on arXiv, where they suggest that some so-called primordial black holes ...
Cosmologists tend not to get all that excited about the universe being 74% dark energy and 26% conventional energy and matter (albeit most of the matter is dark and mysterious as well). Instead they get excited about the ...
Astronomy
Sep 5, 2011
20
0
(Phys.org) —For many years scientists have believed that our Galaxy, the Milky Way, is set to crash into its larger neighbour, the Andromeda Galaxy, in about 3 billion years' time and that this will be the first time such ...
Astronomy
Jul 4, 2013
34
0
For the chance to watch the sun rise over Olympus Mons, or maybe take a stroll across the vast plains of the Vastitas Borealis, would you sign on for a one-way flight to Mars?
Space Exploration
Oct 19, 2010
74
0
A new way to look at cancer—by tracing its deep evolutionary roots to the dawn of multicellularity more than a billion years ago—has been proposed by Paul Davies of Arizona State University's Beyond Center for Fundamental ...
General Physics
Jul 12, 2013
18
0
Researchers from the Finnish Aalto University and the Technical Research Centre of Finland succeeded in showing experimentally that vacuum has properties not previously observed. According to the laws of quantum mechanics, ...
General Physics
Feb 26, 2013
415
1
(Phys.org)—The universe is comprised of a large amount of invisible matter, dark matter. It fills the space between the galaxies and between the stars in the galaxies. Since the prediction of the existence of dark matter ...
Astronomy
Sep 4, 2012
77
0
For almost a century, astronomers and cosmologists have postulated that space is filled with an invisible mass known as "dark matter". Accounting for 27% of the mass and energy in the observable universe, the existence of ...
Astronomy
Aug 31, 2016
4
3
(PhysOrg.com) -- Like all galaxies, our Milky Way is home to a strange substance called dark matter. Dark matter is invisible, betraying its presence only through its gravitational pull. Without dark matter holding them together, ...
Astronomy
Oct 17, 2011
30
0
