The James Webb Space Telescope has captured new imagery of supernova remnant Cassiopeia A. It is 11,000 light-years away in ...

Discover the cosmic challenge of capturing faint celestial wonders from one of the brightest cities on Earth.

The most recent nearby supernova, SN 1987A, was in the Large Magellanic Cloud. The Milky Way’s youngest known supernova is ...

There's no shortage of round celestial objects in our universe. Planets, moons and stars all exhibit lovely spherical shapes.

Get Instant Summarized Text (Gist) A newly identified supernova remnant, G305.4–2.2 ("Teleios"), displays an unusually perfect circular symmetry, rare among known remnants. Located at either ...

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

You need to start with a star shedding material ahead of the explosion, something common in several types of supernova.

ASKAP telescope discovered Teleios, a perfectly spherical radio-only object in Milky Way with diameter up to 157 light-years.

Scientists using radio wavelength data from the Australian Square Kilometre Array Pathfinder (ASKAP) spotted a strangely ...

An international team reported Wednesday that this strange celestial object is perhaps a star, pair of stars or something ...