Astronomers have uncovered the largest and most distant water reservoir ever detected in the universe. This staggering ...

Astronomers have discovered what may be the largest-scale structure in the known universe — a group of galaxy clusters and clusters of galaxy clusters that spans roughly 1.3 billion light-years ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

Data from the former ROSAT X-ray satellite have revealed a network of 68 galaxy clusters in the nearby universe, stretching over 1.4 billion ... of all reliably measured cosmic structures. The largest ...

The ancient object formed when the universe was less than 10% of its current age of 13.8 billion years, according to a new study. “This is the largest radio jet seen thus far in the early ...

The nebula is huge, spanning 650 light-years in diameter. It's one of the most intense star-forming regions around, and in fact the largest in ... star known in the universe, called R136a1.

The largest known structure in the universe has been discovered by astronomers this month in a scientific breakthrough. It is 1.4 billion light years across and contains nearly 70 galactic ...

A supernova is one of the most powerful and mysterious phenomena in the universe. It’s an event that occurs when a star ...