In its first year of full operations, the Euclid space telescope has quietly built one of the most ambitious maps of the ...

A new study casts doubt on the universe’s accelerating expansion, suggesting dark energy might be weakening over time.

“You build these machines not to confirm the paradigm but to break it,” European Space Agency senior science and exploration adviser Mark McCaughrean said. This logic underlies the iconoclastic ...

Tracking down black holes at the center of dwarf galaxies has proven difficult. In part it is because they have a tendency to ...

Dark matter may be invisible, but scientists are getting closer to understanding whether it follows the same rules as ...

The distorted spiral galaxy at center, the Penguin, and the compact elliptical at left, the Egg, are locked in an active embrace. Credit: NASA KATHLEEN DAVIS: But first, the James Webb Space telescope ...

Q How many galaxies are in the universe? — Gus Powvens, Madison, Wis. A Jim Lattis, director of the UW Space Place at the University of Wisconsin-Madison: Galaxies are clouds of stars that range in ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Centuries before other galaxies were known to exist, astronomers called them “spiral nebulas.” Today the defunct term still ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Galaxies come in a variety of shapes and sizes. Some have buff ...

Black holes not only existed at the dawn of time, they birthed new stars and supercharged galaxy formation, a new analysis of James Webb Space Telescope data suggests. Black holes not only existed at ...

A few hundred million years after the Big Bang, a thick fog of hydrogen gas shrouded the newborn universe in darkness. Stars had begun to form in the densest clumps, but the surrounding gas muffled ...