Astrophysics

Astronomers have put together one of the most comprehensive maps of all the matter in the universe. The huge undertaking hints at a slightly smoother universe than we thought, suggesting that something might be missing from our models.

Dark matter remains elusive despite decades of searching. Now physicists have proposed a new experiment that would try to find signals by sending atomic clocks to where dark matter should be at its most dense – right near the Sun.

Wormholes are a sci-fi staple, and and it's possible that they exist in the real universe. But how would they work? Physicists have now used a quantum processor to simulate a traversable wormhole, teleporting information between two quantum systems.

Astrophysicists have observed puzzling behavior in star clusters that defies our current understanding of gravity at cosmic scales. Intriguingly, the observations fit with an alternative theory of gravity that could negate the need for dark matter.

Despite making up 85% of the total mass in the universe, dark matter eludes detection. A new study proposes a unique way to look for it using the Earth’s atmosphere as a giant detector for dark matter particles streaming through the air like meteors.

The first dark matter detector in the Southern Hemisphere has been officially opened. The Stawell Underground Physics Laboratory (SUPL) is built in a disused gold mine in Australia, giving it a unique position on the globe for detecting dark matter.

Everything has to end eventually – including the universe itself. It might be hard to imagine a catastrophe big enough to affect the entirety of existence, but here are some of the leading hypotheses about how the universe could end, and when.

NASA has released a huge new report that astronomers are calling Hubble’s magnum opus. Analyzing 30 years of data from the famous space telescope, the new study makes the most precise measurement yet of how fast the universe is expanding.

Astronomers have discovered the most distant object ever seen – a strange galaxy some 13.5 billion light-years away. Named HD1, the galaxy may house a never-before-seen population of stars, or a supermassive black hole mysteriously ahead of its time.

Astronomers have discovered the closest known pair of supermassive black holes – and that record has two meanings. Not only are they the closest pair to Earth, but they’re the closest to each other as well, heading for an eventual monster merger.

How did the universe end up with exactly the amount of dark matter needed? A new model suggests dark matter particles in the early universe converted regular matter into dark matter exponentially, before being slowed by the expansion of the universe.

Astronomers have proposed a novel solution to one of the many mysteries of black holes – why do so many seem to be more massive than expected? A new model suggests that their growth may be “cosmologically coupled” to the expansion of the universe.