Mac

http://s.erious.ly

Posts tagged "Cosmology"

Theorists seek dark matter in hot neutron stars

Dark matter is an enigma wrapped in a conundrum. We have lots of gravitational evidence for the presence of dark matter. In fact, the evidence is from so many different types of observations, and is all so consistent, that...

Cosmology and dark energy revealed by geometry of galaxy pairs

The Universe strikes a balance between simplicity and complexity that cosmologists are increasingly coming to understand. Recent observations of supernovae and the large-scale distribution of galaxies leave us with the confoundi...

Is it now or never for dark matter WIMPs?

For several decades, astronomers and cosmologists have been piling up data that indicates most of the matter in the Universe is dark, interacting only via gravity. As modified theories of gravity failed to account for observatio...

Cheap and cheerful gravity wave detector on the horizon

Gravity waves seem to be the ultimate in hard-to-detect phenomena. Currently, we have a couple of rather large laser interferometers and a giant suspended pendulum looking for them, so far without success. Furthermore, astronome...

Astronomy and particle physics race to replace Standard Model

If energy issues seem to be attracting the attention of a lot of physicists, the Large Hadron Collider seems to be drawing the attention of many of the rest of them, including people in fields...

A short history of the history of the Universe

John Mather, along with George Smoot, won the Nobel Prize for his work on the Cosmic Background Explorer (COBE), the probe that first caught glimpses of fluctuations in the Cosmic Microwave Background (CMB) left over...

Recent observations show dark matter unobserved again

One of the things that isn't widely advertised in science is that progress often looks a bit like this video—things get done, but the results are rarely quite what you expect. A...

General relativity passes a large scale test

General relativity, our current best understanding of gravity, has passed yet another test—this time on a much larger length scale. Ever since relativity's first confirmation in 1919, when Sir Arthur Stanley Eddington observed that the light from...

Physicists look for the arrow of time, biologists find it

One of the nice things about being in the science writing business for a while is that, even when the science of a given topic doesn't make a whole lot of sense,...

Standard candle supernovae the product of colliding dwarfs

In cosmology, a special type of supernovae, known as a standard candle, is used to help determine distances on cosmological length scales. These standard candles were what revealed that the expansion of the universe...

Speculating about the Universe as a quantum fluid

The first thing that struck me about Hitoshi Murayama was that he certainly did not fit the stereotype of a Japanese presenter—he's relaxed, eloquent, and clearly very, very excited about his work....

Two events hint at impact of dark matter particles

There's a chance that today will go down as the day of the first announcement that we've detected the presence of particles of dark matter. Two talks from members of the...