Supernova
A supernova is a stellar explosion that briefly outshines an entire galaxy, radiating as much energy as the Sun or any ordinary star is expected to emit over its entire life span, before fading from v...
Supernova - Wikipedia
Scientists attempt to peer into black hole for first time
Astronomers around the world are launching experiment known as 'Event Horizon Telescope' peering into supermassive black hole at center of Milky Way galaxy f...
The biggest explosions in the Universe
These bursts are a million times brighter than entire galaxies
Hubble Captures The Beating Heart Of The Crab Nebula
Peering deep into the core of the Crab Nebula, this close-up image reveals the beating heart of one of the most historic and intensively studied remnants of a supernova — an exploding star.
After Black Holes Collide, a Puzzling Flash
A surprising flash that accompanied a black hole collision is leading physicists to rethink what black holes can do.
Astronomers Have Found The Brightest Supernova Yet
A brilliant explosion spotted in a galaxy far, far away is the brightest supernova ever recorded, astronomers announced today. Picked up by a night-sky survey, the explosion happened 3.8 billion light...
Event Horizon Snapshot Due In 2017 - First Ever Black Hole Pictures
A global network of nine radio telescopes is set to take the first ever picture of a black hole's event horizon in 2017. The project, called the Event Horizon Telescope, has completed most of its tech...
What Do You Get When Two Neutron Stars Merge?
What remnant is formed by a neutron-star merger: another neutron star? Or a black hole? The answer determines whether or not an explosion of energy is released in the form of a gamma-ray burst. The me...
Lawrence Livermore Scientists Move One Step Closer To Mimicking Gamma-Ray Bursts
Using ever more energetic lasers, Lawrence Livermore researchers have produced a record high number of electron-positron pairs, opening exciting opportunities to study extreme astrophysical processes,...
Universe's Expansion May Be Slower Than Previously Believed, Study Finds
According to a team of astrophysicists led by the University of Arizona, the universe might be expanding at a slower rate than previously believed – or so their findings, which were published as two p...
"Mini supernova" explosion could have big impact
In Hollywood blockbusters, explosions are often among the stars of the show. In space, explosions of actual stars are a focus for scientists who hope to better understand their births, lives, and deat...
Supernova Mystery Found at the Bottom of the Sea
One of the least likely places you might think astronomers would learn about ancient supernovae is at the bottom of the ocean but scientists have done just that -- also dredging up a mystery.
Supernova Blast in Superwind Galaxy Glows in Amateur Photo
This stunning image shows a bright supernova in the Superwind galaxy taken on Jan. 2 by astrophotographer Justin Ng.
Brightest Explosion In the Universe Ever Seen Defies Astronomy Theories
When a colossal blast of light was detected near the constellation Leo earlier this year, astronomers were mystified about the origin of the violent explosion. Now, new research confirms the event was...
Supernova
When a star explodes, it leaves behind a debris field of stellar material and high-energy particles known as a supernova remnant. Astronomers use Chandra to ...
Hypernova - Video
A hypernova explosion, the possible source of powerful gamma-ray bursts, is about 100 times more energetic than a supernova explosion and is thus the most en...
History of supernova observation
The known history of supernova observation goes back to 185 CE, when supernova SN 185 appeared, the oldest appearance of a supernova recorded by humankind. Several additional supernovae within the Mil...
History of supernova observation - Wikipedia
Type Ia supernova
This artist’s impression video shows the central part of the planetary nebula Henize 2-428. The core of this unique object consists of two white dwarf stars, each with a mass a little less than that...
Type Ia supernova - Wikipedia
Type Ib and Ic supernovae
Types Ib and Ic supernovae are categories of stellar explosions that are caused by the core collapse of massive stars. These stars have shed (or been stripped of) their outer envelope of hydrogen, and...
Type Ib and Ic supernovae - Wikipedia
Type II supernova
A Type II supernova (plural: supernovae or supernovas) results from the rapid collapse and violent explosion of a massive star. A star must have at least 8 times, and no more than 40–50 times, the mas...
Type II supernova - Wikipedia
Gravitational collapse
Gravitational collapse is the inward fall of an astronomical object due to the influence of its own gravity which tends to draw the object toward its center of mass. In any stable body, this gravitati...
Gravitational collapse - Wikipedia
Pair-instability supernova
A pair-instability supernova occurs when pair production, the production of free electrons and positrons in the collision between atomic nuclei and energetic gamma rays, reduces thermal pressure insid...
Pair-instability supernova - Wikipedia
Supernova nucleosynthesis
Supernova nucleosynthesis is a theory of the production of many different chemical elements in supernova explosions, first advanced by Fred Hoyle in 1954. The nucleosynthesis, or fusion of lighter el...
Gamma-ray burst
Gamma-ray bursts (GRBs) are flashes of gamma rays associated with extremely energetic explosions that have been observed in distant galaxies. They are the brightest electromagnetic events known to occ...
Gamma-ray burst - Wikipedia
Supernova remnant
A supernova remnant (SNR) is the structure resulting from the explosion of a star in a supernova. The supernova remnant is bounded by an expanding shock wave, and consists of ejected material expandi...
Supernova remnant - Wikipedia
Near-Earth supernova
A near-Earth supernova is an explosion resulting from the death of a star that occurs close enough to the Earth (roughly less than 100 light-years away) to have noticeable effects on its biosphe...
Supernova Early Warning System
The SuperNova Early Warning System (SNEWS) is a network of neutrino detectors designed to give early warning to astronomers in the event of a supernova in our home galaxy or a nearby galaxy such as th...
Hypernova
A hypernova (pl. hypernovae or hypernovas) is a type of star explosion with an energy substantially higher than that of standard supernovae. An alternative term for most hypernovae is "superluminous s...
Hypernova - Wikipedia