According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density ...

The low carbon levels are particularly interesting, as previously discovered “pristine” or metal-poor stars generally ...

On the night of Oct. 5, 1923, Edwin Hubble observed a strange star that flickered in intensity at regular intervals. The star ...

What is the biggest object in the universe? Learn more about the biggest objects in the universe, including galaxies, galaxy ...

For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of light is incredibly fast to us ...

Our own planet represents a tiny fraction of the peculiar phenomena that can be found lurking throughout the cosmos, and every day astronomers turn up new surprises. In this gallery, we take a look at ...

Periodically, the European Space Agency (ESA) releases images that provide breathtaking views of the cosmos, courtesy of its ...

The first stars in the universe formed out of pristine hydrogen and helium clouds, in the first few hundred million years ...

The James Webb Space Telescope, launched in 2022, has discovered something that may shatter current theories about the universe's early development.

Astronomy is, in essence, an exercise in inference. We cannot touch the stars, nor scoop up galaxies in a lab. Instead, we ...

The James Webb Space Telescope's latest image shows eight spectacular examples of gravitational lensing, a phenomenon that ...

The first fast radio burst, or FRB, was discovered in 2007 in archival data collected back in 2001, and scientists were ...