universe

Powerful bright blue cosmic explosions called Luminous Fast Blue Optical Transients could be caused when a black hole or neutron star slams into the universe's hottest class of star.

Early galaxies were star-forming machines, gobbling up gas and spitting out stars with a furious intensity. A new model helps explain why things were so different back then.

Our universe is full of mysteries, but few are as perplexing as the dark, tiny galaxies that hover around larger ones like the Milky Way.

"It highlights gravity's possible hidden complexity and invites a reevaluation of where dark matter effects originate."

Recent James Webb Space Telescope data confirms a decade-old theory that the universe's earliest supermassive black holes formed without stars.

There may not be as nearly as many small galaxies in the early universe as astronomers predict there should be, which has big implications for the story of how our universe grew up.

The shape of the universe is not something we often think about.

While space is often referred to as a vacuum, it isn't completely empty.

Depending on how you look at it, the universe might not have an "end," after all.