cosmic microwave background

During the wide-ranging interview, held following a ceremony in Holmdel marking the 50th anniversary of the discovery, Wilson
With those updated numbers, he says,there's no evidence for the detection of gravitational waves. But a final determination
If confirmed, the recently detected potential ripples from the Big Bang represent an imprint on the cosmic microwave background by gravitational waves. Those gravitational waves are produced through a quantum process, providing, for the first time (again, if confirmed), evidence that gravity is governed by quantum mechanics. This point cannot be overemphasized.
A handful of physics articles from 50 years ago have become central to the way physicists think about matter and the cosmos today -- so central, in fact, that we can sometimes forget that these foundational ideas even have a history.
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This image unveiled March 21, 2013, shows the cosmic microwave background (CMB) as observed by the European Space Agency's
But there is another way to produce B-modes as well: primordial gravitational waves produced during the earliest moments
The simplest theory of inflation holds that the Universe is flat and that its expansion is driven by a single quantum field
"It doesn't prove anything wrong," Linder said in the email, "but rather adds extra detail and richness to our understanding
The night sky, sprinkled with twinkling stars and the pale light of a silvery Moon, has fascinated humans since the dawn of history. But, why is it dark? If you think that the answer is: "Because you don't see the Sun," think again.
But first scientists must detect B-modes of any kind. That's what the team with the South Pole Telescope (SPT), a 10-meter
One may wonder which crucial questions will almost certainly occupy physicists and astronomers working together in the coming few decades. Here are a few of the remaining puzzles.
"I don't think you could do better than doing cosmology right now; it's just amazing," Albrecht said. The CMB has provided
In general, inflationary models share the broad prediction that the range of temperature variations in the CMB should follow
2013-04-09-watzkepull.jpg Many of these images are spectacular, but what does it mean if the planets are pink or the galaxies are green? Are these colors 'real'?
These patterns allow astronomers to predict what could have possibly happened earlier, and what has happened in the billions
CSM: Ah. So if we zoom down, as small as we can go, we can break down molecules into atoms, and atoms into subatomic particles
HuffPost Senior Science Correspondent Cara Santa Maria speaks with theoretical physicist Mark Jackson to get a primer on superstring theory.
Given that the different members of the multiverse are not causally connected, the question that emerges is whether there is a way to verify whether such a multiverse truly exists. As it turns out, there are at least two possible paths that could (at least in principle) test the multiverse scenario.
I'm convinced that most readers have at least heard that we believe our universe started with a "Big Bang" -- a very hot and dense state. Why do we think that?