The most recent measurement of a nearby galaxy cluster is deepening a disagreement about how fast the universe is expanding — ...

Astronomers have spotted something that appears to stretch around ten billion light years across. This so-called ...

These glowing arcs of radio energy are known as "radio relics," faint clouds resulting from powerful shockwaves surging ...

NASA has confirmed that operations have begun for its latest space observatory, which is tasked with snapping 3,600 images of ...

A new space telescope is mapping the sky in 102 colors — and it may just rewrite our understanding of the universe.

Astronomers using the James Webb Space Telescope have discovered Zhúlóng, the most distant known spiral galaxy, existing just ...

"Cosmologists calculate the current theoretical size limit of structures to be 1.2 billion light-years, yet both of these structures are much larger – the Giant Arc is almost three times bigger and ...

Helicopters are being used to tackle Scotland's fourth wildfire this week after others broke out in England amid warmer-than-usual temperatures. The latest blaze was reported in Galloway at 11 ...

If dark energy is weakening, as suggested by recent results, then the cosmos is far stranger than most physicists had ...

The XRISM science team, including members from Nagoya University in Japan, has explained how a galaxy cluster maintains its heat, despite emitting X-rays that cool the hot gas at its center. The group ...

The most massive structure in the Universe, the Hercules-Corona Borealis Great Wall, challenges cosmological models with its ...

The largest sample of galaxy groups ever detected has been presented by a team of international astronomers using data from ...