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When a massive star reaches the end of its life, it explodes as a supernova that can light up the sky for months. But some supernovae stay luminous for much longer, and astrophysic...
When massive stars die, they unleash some of the most powerful explosions in the universe. Yet not all supernovae are created equal. Some continue to shine brightly for months or e...
Superluminous supernovae are the royalty in the supernova world. They're up to 100 times brighter than a standard supernova, and astrophysicists want to know why. New research show...
Once charted as a 'guest star' in ancient China, dreaded as a harbinger of ill omens in medieval Europe, and preserved in the narratives and artworks of Indigenous cultures, these...
The wreckage of an exploded star is meant to fade quietly, cooling over thousands of years like the embers of a fire. So astronomers were stunned when NASA's Chandra X-ray Observat...
When some stars die, they do not do so alone, potentially solving a long-standing mystery around a particular class of cosmic explosion called an interacting supernova.
Learn about a bright blob in the central region of the Milky Way, illuminating what may be a remnant of a massive star that exploded
This sparkling galaxy is home to a set of supernova remnants that showed variable brightnesses over 14 years of data
A new study of two supernova remnants, the debris left behind after stars explode, suggests the explosions came from stellar siblings that once orbited each other. The first star's...
Exploding stars have left their radioactive mark on our planet. Now scientists have found more evidence of a particularly violent event in Earth’s more ancient past. The post Exp...
Astronomers may have discovered one of the clearest examples yet of a rare "pair-instability" supernova. It is a catastrophic explosion thought to completely destroy some of the mo...
The aftermath of a supernova, a stellar explosion, is usually a slowly fading cloud of hot gas. So when astronomers pointed NASA's Chandra X-ray Observatory at the nearby galaxy Me...
NASA’s Chandra X-ray Observatory and ESA’s XMM-Newton may have found a supernova remnant near the supermassive black hole at the center of the Milky Way galaxy. If confirmed as a s...
Astrophysicists have found what is likely the very first pair of sibling supernova remnants. One is the well-known Jellyfish Nebula, and the other was long thought to be hidden in...
NASA’s Fermi telescope may have finally uncovered the magnetic powerhouse behind the universe’s brightest supernovae. An international team of astronomers analyzing observations fr...
New analysis reveals a tight relationship between two supernova remnants in the outer Milky Way. The post Double Whammy: Binary Supernova in Gemini appeared first on Sky & Tel...
Astronomers may have found the remains of two long-dead stellar siblings
When neutron stars merge, they create a powerful explosion called a kilonova that flings out neutron-rich material, some of which decays into heavy elements through a process calle...
When astronomers first observed iPTF14hls in September 2014, they identified it as a supernova and expected it to dim within 100 days. Instead, it kept erupting. Over approximately...
NASA's Chandra X-ray spacecraft has detected the supernova wreckage of a dead star that erupted 1,700 years ago and ejected debris at 2 million miles per hour.
The universe is haunted by "cosmic ghosts" called neutrinos, which seem to be the "whispers" of stars that died in supernova explosions over the course of billions of years.
Dr. Shing-Chi Leung, assistant professor of physics at SUNY Polytechnic Institute, has published the article "Primordial Black Hole Triggered Type Ia Supernovae II: Comparison with...
Buried a kilometre underground in Japan, one of the world's most sensitive detectors may have caught its first faint trace of a sound scientists have been straining to hear for dec...
NASA's Fermi Gamma-ray spacecraft has observed a super-bright, supercharged supernova explosion powered up by the creation of a highly magnetic dead star, or magnetar.
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