A vast filament of gas stretching across the cosmos may help solve the mystery of the Universe’s missing matter. Astronomers have identified a massive filament of hot gas connecting four galaxy ...

NASA's Chandra X-ray Observatory provides a new look at the Andromeda galaxy in this multi-wavelength image that includes ...

The scientists who precisely measure the position of Earth are in a bit of trouble. Their measurements are essential for the ...

The scientists who precisely measure the position of Earth are in a bit of trouble. Their measurements are essential for the ...

Blaze of Glory. In 1967, Bell Burnell was working with Anthony Hewish, an astronomer at Cambridge who wanted to find more quasars, which are the distant, extremely bright cores of massive galaxies.

The second half of the 19th century was a particularly interesting time to imagine Mars. This was a period during which the ...

Using NASA’s Chandra X-ray Observatory and other telescopes, astronomers have found that a black hole that shredded a star has moved onto a another star or stellar black hole. Credit: NASA/CXC/A. Hoba ...

A newly discovered radio halo, 10 billion light-years away, reveals that galaxy clusters in the early universe were already ...

Scientists have discovered the farthest-ever 'mini-halo,' a sea of charged particles around a distant galaxy cluster that ...

Supermassive black holes usually lurk unseen, but when an unlucky star drifts too close they ignite titanic outbursts ...

LOFAR detects a faint radio 'mini-halo' from 3.8 billion years ago, revealing how galaxy clusters evolved in the early ...