Once-in-a-lifetime nova outburst to add "new" star to sky this year
T Coronae Borealis explodes once every 80 years or so after the white dwarf strips enough of the red giant's atmosphere.
Physicists reveal how "kilonova" explosion could end life on Earth
"Ionizing radiation from these sources can be dangerous for life on Earth-like planets," the researchers wrote in the paper.
Ancient "ritual artifact" may reveal secrets of deep space
A mysterious stone disk found at an ancient hill fort could be the oldest celestial map ever discovered.
Astronomers spot dead star unexpectedly come to life with powerful flashes
"We've never seen anything with this combination of duration, power, and wavelength," astrophysicist Anna Y. Q. Ho told Newsweek.
Enormous cosmic energy burst struck Earth so hard it scrambled radios
The energy beam was the highest energetic gamma-ray burst ever recorded by mankind, a space weather scientist said.
Kilonova millions of times brighter than Milky Way birthed rarest elements
"Colliding neutron stars provide the conditions needed to synthesize very heavy elements," said University of Birmingham astrophysicist Ben Gompertz.
James Webb Telescope reveals new structures in stunning supernova
The iconic supernova blazed with the power of 100 million suns for several months after being discovered close to our galaxy in 1987.
Star Wars plot cited as possible theory behind distant planet's survival
Halla is an exoplanet orbiting dying star Baekdu at a close distance, meaning it should have been engulfed by the star as it expanded into a red giant.
Star Betelgeuse's spectacular supernova will be visible with the naked eye
Betelgeuse, a red supergiant, has been getting brighter over the last few months, leading scientists to suggest it may explode sooner than expected.
Supernova that just hit Earth was unlike anything astronomers had ever seen
An enormous gamma-ray burst from a dying star was the most powerful recorded, scientists have said.
Could There Be a Black Hole Lurking on the Edge of the Solar System?
Becky Smethurst tells Newsweek a black hole is a couch cushion, "not pulling anything towards them. But if you lose something down the side, it's gone forever."
New Flash of Deep Space Could Be Massive Star Explosion
Scientists have discovered an ultra-bright phenomenon in the distant universe that could have come from a star destroyed by a black hole.
Star struck: Amateur Astronomer Teams Discover Supernovae, Storms on Saturn
Australia's Astronomical Society has awarded its revered Page Medal to two amateur astronomy projects for the first time in its history.
Homeless Amateur Astronomer on 'Joy' of Discovering Distant Supernova
Prolific star hunter Filipp Romanov, 24, previously discovered 80 variable stars, planetary nebula, and binary stars, but SN 2022bsi is his first supernova.
Stunning Image Shows Star Exploding in Powerful Death by Supernova
Images of the Cartwheel galaxy located around 500 million light-years from Earth show a massive star erupting in a supernova that will disperse heavy elements throughout the Universe.
Most Tilted Black Hole Ever Could Change What We Know About How They Form
The black hole is stealing material from a companion star, in a process that could show how black holes get a kick from supernova explosions that form them.
Mysterious 250 Light-Year-Wide 'superbubble' Ripping Apart Nearby Nebula
The void is located 170,000 light-years from Earth, within one of the Milky Way's satellite galaxies, the Large Magellanic Cloud.
Centuries-Long Mystery of Weird Light That Puzzled Astronomers Solved
Early Chinese astronomers thought the flashes of light in the sky were stars that appeared briefly then vanished.
Radiation Blast That Hit Earth Was Record-Breaking Energy Burst From Star
The blast emitted more energy than the entire Milky Way galaxy for the short time it lasted and took half the age of the universe to reach us.
Supernova Explosions May Have Caused Mass Extinction 350 Million Years Ago
Supernovae are cataclysmic explosions that occur during the last evolutionary stages in the life of massive stars.
The Universe Will End With a Black Dwarf Supernova
The last ever explosions will be silent fireworks that take place long after everything else in the universe has died, a study has found.
Incredible X-Ray Map of the Universe Like You've Never Seen It Before
"This all-sky image completely changes the way we look at the energetic universe," said researcher Peter Predehl.
An Extremely Bright Star Has 'Disappeared' And Scientists Aren't Sure Why
One suggestion is the star collapsed into a black hole without producing a supernova—a phenomenon that has never been identified in such a large star before.
Is Weird Dimming a Sign This Star Is About to Explode?
Betelgeuse a nearby red supergiant star which is up to 20 times more massive than our sun.
Most Massive Neutron Star Ever Discovered Is at 'Tipping Point'
The star, named J0740+6620, has a mass more than two times that of our sun, but is just 18 miles wide.
Gargantuan, Never-Before-Seen Radio Bubbles Discovered at Milky Way Center
The two balloon-like structures stretch hundreds of light-years and are thought to have formed in a violent eruption seven million years ago.
Stardust From Supernova Explosion Discovered in Antarctic Snow: Study
The snow contained substantial quantities of dust-enriched with iron-60—which isn't naturally produced on our planet.
Hubble Captures Cosmic Fireworks at one of Brightest Stars in the Galaxy
The exploding star system is located around 7,500 light years away in the constellation Carina (The Ship's Keel.)
First Stars Exploded, Sending Out Powerful Jets that Produced New Ones
These early stars may have blown up in a more violent and asymmetric fashion than previously thought.
Scientists Baffled by 'Cow' Explosion in Deep Space
On June 16, 201, the discovery of a strange flare in the sky was reported in an astronomical telegram.