Current Supernova News and Events

Current Supernova News and Events, Supernova News Articles.
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Hubble pinpoints supernova blast
The NASA/ESA Hubble Space Telescope has observed the supernova remnant named 1E 0102.2-7219. Researchers are using Hubble's imagery of the remnant object to wind back the clock on the expanding remains of this exploded star in the hope of understanding the supernova event that caused it 1700 years ago. (2021-01-15)

Researchers rewind the clock to calculate age and site of supernova blast
Astronomers are winding back the clock on the expanding remains of a nearby, exploded star. By using NASA's Hubble Space Telescope, they retraced the speedy shrapnel from the blast to calculate a more accurate estimate of the location and time of the stellar detonation. (2021-01-14)

Chandra studies extraordinary magnetar
In 2020, astronomers added a new member to an exclusive family of exotic objects with the discovery of a magnetar. New observations from NASA's Chandra X-ray Observatory help support the idea that it is also a pulsar, meaning it emits regular pulses of light. (2021-01-08)

Three flavors are better than one -- in ice cream and supernova research
New research from Northwestern University has found that by studying all three ''flavors'' involved in a supernova, they've unlocked more clues as to how and why stars die. (2020-12-21)

Artificial intelligence classifies supernova explosions with unprecedented accuracy
Scientists from the Center for Astrophysics | Harvard & Smithsonian have trained machine learning software to classify supernovae without the traditional use of spectra. The project--the first to use real supernovae data to inform its artificial intelligence--is 82% accurate. Currently, scientists take spectra of 10-percent of the ~10,000 supernovae discovered each year. When the Rubin Observatory goes online, only 0.1-percent of the expected supernovae discoveries will be further studied without the new software. (2020-12-17)

Scientists create a new phototoxic protein, SuperNova2
Scientists have developed an enhanced version of SuperNova, a genetically encoded phototoxic synthesizer, that helps control intracellular processes by light exposure. 'We expect that the genetically encoded photosensitizer SuperNova2 will find use in a wide range of experimental models,' Konstantin Lukyanov, a professor at the Skoltech Center of Life Sciences (CLS), comments. (2020-12-17)

Supernova surprise creates elemental mystery
Michigan State University (MSU) researchers have discovered that one of the most important reactions in the universe can get a huge and unexpected boost inside exploding stars known as supernovae. (2020-12-02)

Tree rings may hold clues to impacts of distant supernovas on Earth
Massive explosions of energy happening thousands of light-years from Earth may have left traces in our planet's biology and geology, according to new research by University of Colorado Boulder geoscientist Robert Brakenridge. (2020-11-11)

Most isolated massive stars are kicked out of their clusters
A pair of University of Michigan studies reveals how some massive stars -- stars eight or more times the mass of our sun--become isolated in the universe: most often, their star clusters kick them out. (2020-10-30)

Measuring the expansion of the universe: Researchers focus on velocity
There seems to be a discrepancy between measurement of the expansion of the Universe using radiation in the early Universe and using nearby objects. Researchers from the Cosmic Dawn Center, at the Niels Bohr Institute, University of Copenhagen, have now contributed to this debate by focusing on velocity (2020-10-29)

In the eye of a stellar cyclone
While on COVID lockdown, a University of Sydney honours student has written a research paper on a star system dubbed one of the ''exotic peacocks of the stellar world''. (2020-10-11)

Hubble observes spectacular supernova time-lapse
The NASA/ESA's Hubble Space Telescope has tracked the fading light of a supernova in the spiral galaxy NGC 2525, located 70 million light years away. Supernovae like this one can be used as cosmic tape measures, allowing astronomers to calculate the distance to their galaxies. Hubble captured these images as part of one of its major investigations, measuring the expansion rate of the Universe, which can help answer fundamental questions about our Universe's very nature. (2020-10-01)

Hubble watches exploding star fade into oblivion
When a star unleashes as much energy in a matter of days as our Sun does in several billion years, you know it's not going to remain visible for long. Like intergalactic paparazzi, NASA's Hubble Space Telescope captured the quick, fading celebrity status of a supernova, the self-detonation of a star. (2020-10-01)

Stellar explosion in Earth's proximity
When the brightness of the star Betelgeuse dropped dramatically a few months ago, some observers suspected an impending supernova - a stellar explosion that could also cause damage on Earth. While Betelgeuse has returned to normal, physicists from the Technical University of Munich (TUM) have found evidence of a supernova that exploded near the Earth around 2.5 million years ago. (2020-09-30)

FSU-led research team discovers unique supernova explosion
A 7-member international research team led by Florida State University Assistant Professor of Physics Eric Hsiao discovered a supernova that could help uncover the origins of the group of supernovae this star belongs to. (2020-09-10)

Ancient star explosions revealed in the deep sea
A mystery surrounding the space around our solar system is unfolding thanks to evidence of supernovae found in deep-sea sediments. (2020-08-24)

Discovery lays blame on supernova for extinction event nearly 360 million years ago
Between a decline in biodiversity and a series of extinction events, the Late Devonian period was not the most hospitable time on Earth. And then came one or more supernovae explosions whose resulting ionizing radiation was the final push that spelled the end for armored fish, most trilobites and other life. (2020-08-20)

Exploding stars may have caused mass extinction on Earth, study shows
Imagine reading by the light of an exploded star, brighter than a full moon. It might be fun to think about, but this scene is the prelude to a disaster when the radiation devastates life as we know it. Killer cosmic rays from nearby supernovae could be the culprit behind at least one mass extinction event, researchers said, and finding certain radioactive isotopes in Earth's rock record could confirm this scenario. (2020-08-18)

Hubble finds that Betelgeuse's mysterious dimming is due to a traumatic outburst
Observations by NASA's Hubble Space Telescope are showing that the unexpected dimming of the supergiant star Betelgeuse was most likely caused by an immense amount of hot material ejected into space, forming a dust cloud that blocked starlight coming from Betelgeuse's surface. (2020-08-13)

Surrey academics develop a new method to determine the origin of stardust in meteorites
Scientists have made a key discovery thanks to stardust found in meteorites, shedding light on the origin of crucial chemical elements. (2020-08-11)

Explosive nuclear astrophysics
An international team has made a key discovery related to 'presolar grains' found in some meteorites. This discovery has shed light on stellar explosions and the origin of chemical elements. It has also provided a new method for astronomical research. (2020-08-10)

Calcium-rich supernova examined with x-rays for first time
X-ray images give unprecedented view of extremely rare type of supernova. New information suggests that these supernovae start as compact stars that lose mass at the end of life. Calcium-rich supernovae are responsible for up to half the calcium in the entire universe. SN 2019ehk has the richest calcium emission of all known transients (2020-08-05)

Calcium-rich supernova examined with X-rays for first time
New findings reveal that a calcium-rich supernova is a compact star that sheds an outer layer of gas during the final stages of its life. When the star explodes, its matter collides with the loose material in that outer shell, emitting bright X-rays. The overall explosion causes intensely hot temperatures and high pressure, driving a chemical reaction that produces calcium. (2020-08-05)

ALMA finds possible sign of neutron star in supernova 1987A
Based on ALMA observations and a theoretical follow-up study, scientists suggest that a neutron star might be hiding deep inside the remains of Supernova 1987A. (2020-07-30)

Spectacular ultraviolet flash may finally explain how white dwarfs explode
For just the second time ever, astrophysicists have spotted a spectacular flash of ultraviolet (UV) light accompanying a white dwarf explosion. An extremely rare type of supernova, the event is poised to offer insights into several long-standing mysteries, including what causes white dwarfs to explode, how dark energy accelerates the cosmos and how the universe creates heavy metals, such as iron. (2020-07-23)

Thermonuclear blast sends supernova survivor star hurtling across the Milky Way
An exploding white dwarf star blasted itself out of its orbit with another star in a 'partial supernova' and is now hurtling across our galaxy, according to a new study from the University of Warwick. (2020-07-14)

A cosmic mystery: ESO telescope captures the disappearance of a massive star
Using the European Southern Observatory's Very Large Telescope (VLT), astronomers have discovered the absence of an unstable massive star in a dwarf galaxy. Scientists think this could indicate that the star became less bright and partially obscured by dust. An alternative explanation is that the star collapsed into a black hole without producing a supernova. (2020-06-30)

This supernova in a lab mimics the cosmic blast's splendid aftermath
Mystery enshrouds the birth of swirls typical for supernova remnants like the Crab Nebula. A new 'supernova machine' may help solve it. (2020-06-17)

Shock waves created in the lab mimic supernova particle accelerators
In experiments at the National Ignition Facility, a SLAC-led team found new details about how supernovas boost charged particles to nearly the speed of light. (2020-06-08)

Scientists detect crab nebula using innovative gamma-ray telescope
The prototype Schwarzschild-Couder Telescope (SCT)--developed by scientists at the Columbia University in collaboration with researchers from other institutions--is part of an international effort, known as the Cherenkov Telescope Array (CTA), which aims to construct the world's largest and most powerful gamma-ray observatory, with more than 100 similar telescopes in the northern and southern hemispheres. (2020-06-02)

Astronomers discover new class of cosmic explosions
Analysis of two cosmic explosions indicates to astronomers that the pair, along with a puzzling blast from 2018, constitute a new type of event, with similarities to some supernovae and gamma-ray bursts, but also with significant differences. (2020-05-26)

Milky Way could be catapulting stars into its outer halo, UCI astronomers say
University of California, Irvine astronomers and others have shown that clusters of supernovas can cause the birth of scattered, eccentrically orbiting suns in outer stellar halos, upending commonly held notions of how star systems have formed and evolved over billions of years. (2020-04-19)

Scientists discover supernova that outshines all others
A supernova at least twice as bright and energetic, and likely much more massive than any yet recorded has been identified by an international team of astronomers, led by the University of Birmingham. (2020-04-13)

Dimming Betelgeuse likely isn't cold, just dusty, new study shows
In a paper published on the preprint site arXiv, scientists at the University of Washington and Lowell Observatory report that the average surface temperature of Betelgeuse, calculated using observations taken Feb. 14, 2020, is significantly warmer than expected if its recent dimming had been triggered by a cooling of the star's surface. Their calculations lend support to the theory that Betelgeuse has instead likely sloughed off some material from its outer layers. (2020-03-06)

Two stars merged to form massive white dwarf
A massive white dwarf star with a bizarre carbon-rich atmosphere could be two white dwarfs merged together according to an international team led by University of Warwick astronomers, and only narrowly avoided destruction. (2020-03-02)

A massive star's dying breaths
Betelgeuse has been the center of significant media attention lately. The red supergiant is nearing the end of its life, and when a star over 10 times the mass of the Sun dies, it goes out in spectacular fashion. With its brightness recently dipping to the lowest point in the last hundred years, many space enthusiasts are excited that Betelgeuse may soon go supernova, exploding in a dazzling display that could be visible even in daylight. (2020-02-28)

Revealed: The explosive origin of superluminous supernova SN 2006gy
Providing answers about its curious supreme brightness, researchers say the superluminous supernova SN 2006gy -- one of the brightest stellar explosions ever studied, and discovered in 2006 -- gained its exceptional luster when a normal Type Ia explosion smashed into a surrounding shell of ejected stellar material. (2020-01-23)

New insights about the brightest explosions in the Universe
Swedish and Japanese researchers have, after ten years, found an explanation to the peculiar emission lines seen in one of the brightest supernovae ever observed -- SN 2006gy. At the same time they found an explanation for how the supernova arose. (2020-01-23)

APS tip sheet: High energy gamma rays
Nine Galactic sources are the highest-energy gamma -ray sources ever detected, which could suggest the presence of Galactic accelerators. (2020-01-13)

Explosion or collapse?
A group of scientists, among them several from GSI Helmholtzzentrum für Schwerionenforschung and from Technical University of Darmstadt, succeeded to experimentally determine characteristics of nuclear processes in matter ten million times denser and 25 times hotter than the center of our sun. A result of the measurement is that intermediate-mass stars are very likely to explode, and not, as assumed until now, collapse. The findings are now published in the scientific magazine Physical Review Letters. (2020-01-10)

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