The precursors of heavy elements might arise in the plasma underbellies of swollen stars or in smoldering stellar corpses.

The light they produce wobbles around, making them hard to pin down. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Scientists can finally ...

Space Why it's taking a century to pin down the speed of the universe. The Hubble constant, a set number that connects a galaxy’s speed to its distance from Earth and tells us how fast the ...

If dark matter is made of axions or similar ultralightweight particles, then merging galaxies and clusters may form axion "stars" at their centers that astronomers might be able to detect.

The first images from the Vera C. Rubin Observatory showed off a breathtaking preview of its capabilities — capturing millions of stars and galaxies light-years from Earth, along with thousands ...

In space, no one can hear a pin drop. Richard Branson’s Virgin Galactic was forced to ground its rocket after a part fell off during its first space tourism flight of 2024.

The pin was located on the underbelly of Virgin Galactic’s mothership, called VMS Eve, which is a twin-fuselage plane designed to carry the space plane, VMS Unity, under its wings to a high ...