Astronomers have spotted something remarkable hiding in the depths of the Milky Way—a nearly perfect circle formed from the ...

A supernova remnant (SNR) discovered by astrophysicist Miroslav Filipović of Western Sydney University displays an ...

The gravitational pull from mass objects dictates the shape of the objects in our galaxy, but what if the most perfect sphere ...

An international team of astronomers has discovered a strange cosmic object in our galaxy that they have named Teleios, a ...

Among the wreckage of the Milky Way — where the violent deaths of stars usually leave chaos and crumpled shells — astronomers ...

More information: Miroslav D. Filipovic et al, Teleios (G305.4-2.2)—the mystery of a perfectly shaped new Galactic supernova remnant, arXiv (2025). DOI: 10.48550/arxiv.2505.04041 ...

A pulsar traveling at speeds of up to 2 million miles per hour has been implicated in a cosmic hit-and-run involving one of the Milky Way’s largest and most mysterious structures, the Snake filament.

Magnetars are among the rarest—and weirdest—denizens of the galactic zoo ... separation between the magnetar and the center of the supernova remnant on the sky is just 80 arcminutes, or ...

"Sagittarius A East" is a supernova remnant located near the center of our Galaxy, notable for its close proximity ―just a few light-years― to the supermassive black hole at the galactic center, ...

Named HAWC J1746-2856, the accelerator spits out the most powerful emission ever observed from the galactic center. The team have yet to narrow down HAWC J1746-2856's identity, with no known supernova ...

NASA image of Cassiopeia A supernova remnant The Cassiopeia A supernova ... The bright massive star WR 124 gleams at the center of the composite image. The image also shows a hue of dusty rose ...

A glowing supernova ... galactic collisions and even exoplanets. “For a quarter century, Chandra has made discovery after amazing discovery,” said Pat Slane, director of the Chandra X-ray ...