The world's largest telescope continues to take shape on the Cerro Armazones mountain in Chile's Atacama Desert.

Newly discovered Quipu, a superstructure in which galaxies group together in clusters and clusters of clusters, is the largest known structure in the universe in terms of length, scientists claim.

Using clever light-detecting techniques, ExTrA searches red dwarf stars for planets that might support life. By studying tiny ...

Humanity's most powerful eye on space will be closely examining asteroid 2024 YR4 in the coming weeks and months.

The Webb telescope is well-suited to identify asteroid 2024 YR4's size. Webb views a type of light we can't see with the ...

Over the next several weeks, astronomers will be looking closely at an asteroid called 2024 YR4 that could be as big as a ...

A new study using NASA 's James Webb Space Telescope has revealed a variety of light coming from the black hole Sagittarius A* — or rather its accretion disk, the ring of rapidly spinning material ...

The James Webb Space Telescope, which is the JWST is the largest and space telescope ever built, is expected to help NASA and ...

YR4 has a roughly 2 percent chance of hitting Earth in 2032, and “is large enough to cause localized damage,” NASA says.

Unpredictable bursts of light are pulsing from the debris surrounding Sagittarius A*, offering new insights into the ...

NASA first discovered “2024 YR4,” the 130-to-300-foot-wide asteroid, in December 2024, and found it only had roughly a 1 ...