Astronomers have been confounded by recent evidence that the universe expanded at different rates throughout its life. New ...

Pinpointing a Milepost Marker Star that Opened the Realm of Galaxies At the dawn of the 20th century, astronomers faced a ...

The full image includes some 2.5 billion pixels compiled from observations spanning more than 1,000 orbits around Earth ...

Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

Recent studies challenge the long-held belief that the Milky Way is a standard model for understanding galaxy formation, ...

Researchers studied how the universe’s structure changed over time. They found that the universe is less clumpy than expected ...

The Universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous -- and highly debated -- results had shown: The Universe is expanding faster than predicted by ...

The new composite image, which combines hundreds of photos from the Hubble Space Telescope, shows the Andromeda Galaxy with ...

Across cosmic history, powerful forces have acted on matter, reshaping the universe into an increasingly complex web of structures. Now, new research led by Joshua Kim and Mathew Madhavacheril at the ...

"It looks like it has been through some kind of event that caused it to form a lot of stars and then just shut down” ...

NASA's achievements, from the iconic Apollo missions to the James Webb Telescope, have redefined space exploration and ...

"This is saying, to some respect, that our model of cosmology might be broken," said Scolnic. Measuring the Universe requires ... one of the galaxy clusters nearest to us. "The DESI collaboration ...