New X-ray observations reveal Betelgeuse’s mysterious companion is not a collapsed stellar remnant but a young, Sun-like ...

A consensus is emerging that the dots, sometimes called rubies, are an entirely new type of cosmic object in the Universe.

Even astronomers who study peculiar outer space objects have their favorites. Here are some interstellar bodies that have won ...

The most energetic events in the universe are gamma ray bursts, beams of radiation so intense they could wipe out all life on ...

New observations from the James Webb Space Telescope hint that the universe’s first stars might not have been ordinary fusion ...

Researchers have identified unusual radio signals coming from deep space. These enigmatic waves might have originated from cosmic energy explosions, possibly linked to a distant neutron star, or they ...

A network of optical cavities could be used to detect gravitational waves (GWs) in an unexplored range of frequencies, according to researchers in the UK. Using technology already within reach, the ...

Scientists have completed the broadest search to date for extraterrestrial civilizations by scanning roughly 10.3 million stars using a radio telescope in Australia, but have found nothing - not yet, ...

According to theory, massive red supergiant stars should cause most supernovae, yet they are rarely observed. New James Webb ...

A Northwestern University-led team of astronomers has captured the most detailed glimpse yet of a doomed star before it ...

In a new study, a team of astronomers report that they have captured the most detailed glimpse yet of a red supergiant before it exploded. Using JWST 's powerful infrared vision, the researchers ...