Map of dark matter made from gravitational lensing measurements of 26 million galaxies

What is our universe made of, and has its composition changed over time? Scientists have new insights about these fundamental questions, thanks to an international collaboration of more than 400 scientists called the Dark Energy Survey (DES). Three scientists from NASA’s Jet Propulsion Laboratory in Pasadena, California, are part of this group that is helping to further our understanding of …

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Expansion of the Universe

Enigmatic ‘dark energy‘, thought to make up 68% of the universe, may not exist at all, according to a Hungarian-American team. The researchers believe that standard models of the universe fail to take account of its changing structure, but that once this is done the need for dark energy disappears. The team publish their results in a paper …

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Astronomers are announcing today that they have acquired the first direct evidence that gravitational waves rippled through our infant universe during an explosive period of growth called inflation. This is the strongest confirmation yet of cosmic inflation theories, which say the universe expanded by 100 trillion trillion times, in less than the blink of an eye.

The findings were made …

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Imagine three great minds from the 20th Century (one still alive) – Carl Sagan, Arthur C. Clarke and Stephen Hawking – in conversation talking about God, The Universe and Everything Else. Wouldn’t that be cool? Well, it happened back in 1988!

Chaired by Magnus Magnussen for the BBC (he was the famous host of the BBC’s Mastermind quiz …

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Videos from the Setting Time Aright conference are gradually filtering online, courtesy of the Foundational Questions Institute. Perhaps the very first question that should be asked, of course, is whether the subject of the conference actually exists.

Two well-known partisans were recruited on this issue to hash things out. Tim Maudlin is a philosopher of science who has argued …

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The Bolshoi Simulation is a massive, incredibly detailed model of everything, providing a comprehensive simulation of the universe’s 14 billion year history. Scientists are now exploring the simulation, and her are some of the most breathtaking results of their efforts.

The image above is just one many stunning images to come out of this new simulation. This particular image shows …

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