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James Webb Space Telescope Unveils Hidden Interstellar Wonders of Supernova Cassiopeia A
The James Webb Space Telescope has provided a rare glimpse into the remnants of a centuries-old supernova in Cassiopeia A. Using infrared technology, the telescope captured a light echo caused by a massive star’s explosion, unveiling new insights into the interstellar medium and its magnetic structures. This breakthrough discovery offers valuable...
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James Webb Space Telescope Detects Supernova From 11.4 Billion Years Ago
Astronomers using the James Webb Space Telescope (JWST) have identified AT 2023adsv, a supernova that occurred 11.4 billion years ago. This stellar explosion, from a star 20 times the size of the Sun, offers a glimpse into the early universe's unique stellar evolution. Part of the JWST Advanced Deep Extragalactic Survey, the event highlights how th...
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White Dwarf’s Unexplainable Rapid Spin Finally Decoded by Scientists
The white dwarf star RX J0648.0–4418, 1,700 light-years away, spins at a rapid pace of 13 seconds per rotation. Part of a binary system with a helium-burning hot subdwarf star, it continues to shrink while accreting material. This rare and short-lived system provides a unique view into stellar evolution. Approaching the Chandrasekhar limit, RX J0...
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Supernova Remnant G278.94+1.35 is Closer to Earth, Claims New Study
Astronomers discovered that the supernova remnant G278.94+1.35 is located just 3,300 light years away, much closer than previously believed. Initially thought to span over 500 light years, it is now estimated to measure around 189 by 182 light years. Named "Diprotodon" after Australia’s extinct giant marsupial, this structure remains in an expand...
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Astronomers Spot New Cosmic Explosions 100 Times Brighter Than the Sun
Astronomers have discovered a new class of cosmic explosions, known as 'millinovas,' which are 100 times brighter than the Sun. These events, first identified in 2023, were observed in the Large and Small Magellanic Clouds, two satellite galaxies of the Milky Way. The millinovas are thought to occur when white dwarfs feed off a companion star, prod...
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Scientists Develop New Approach to Capture Gravitational Wave Memory from Supernovae
A study published in Physical Review Letters highlights new methods to detect the gravitational wave memory effect, a unique phenomenon predicted by Einstein's general relativity. Core-collapse supernovae (massive stellar explosions) generate these low-frequency gravitational waves, offering a rare glimpse into stellar interiors. Despite their weak...
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Namibian Observatory Spots Highest Energy Cosmic Electrons Opening Better Understanding of Cosmic Rays
The H.E.S.S. Observatory in Namibia has detected the highest-energy cosmic ray electrons ever observed, suggesting sources within a few hundred light-years. The findings point to extreme phenomena like pulsars and supernova remnants, offering insights into cosmic processes and particle accelerators. The breakthrough provides crucial data for future...
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Crab Nebula’s Strange Zebra Pattern Pulsars Could Be Due to Its Unusual Plasma Density
The Crab Nebula, home to the Crab Pulsar, has long fascinated astronomers due to its unique zebra-like radiation pattern. This strange emission, which has puzzled researchers since its discovery in 2007, is now explained by new research. A team led by Mikhail Medvedev, a physicist at the University of Kansas, uncovered that the unusual pattern is c...
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First Zoomed-in Picture of a Star Outside Our Galaxy Captured, Revealed to Be a Dying Star
The first detailed image of a star outside the Milky Way reveals WOH G64, a giant nearing its end. Captured by the Very Large Telescope Interferometer, this dying star, 1,500 times the size of the Sun, is surrounded by a cocoon of gas and dust, hinting at its eventual collapse into a supernova.
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A Nearby Supernova May End Dark Matter Search, Claims New Study
A supernova within the Milky Way could revolutionise dark matter research by producing gamma rays from axions, elusive particles theorised to exist during a star's core collapse. Scientists at UC Berkeley are calling for gamma-ray telescopes to monitor the sky, ensuring readiness for the next nearby supernova. Such an event could confirm the axion'...
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Never-Seen-Before Image Of Dying Star On Verge Of Supernova Captured
The star, identified as WOH G64, is located 160,000 light-years from us in the Large Magellanic Cloud and is on the verge of dying.
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Could a Supernova Threaten Earth’s Survival? Here's What You Need to Know
Supernova explosions have the potential to harm Earth’s atmosphere, particularly the ozone layer. However, no stars close enough to cause damage are currently identified. The risks are low, but gamma-ray bursts, caused by neutron star mergers, may pose an even greater threat in the future.
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New 3D Map of Local Hot Bubble Reveals Interstellar Tunnel to Superbubble
Using data from the eROSITA All-Sky Survey, astronomers mapped the Local Hot Bubble in 3D, finding a new interstellar tunnel leading towards Centaurus. This tunnel may link the bubble with another galactic superbubble, hinting at a broader network of gas corridors. The eROSITA data also unveils temperature variations within the bubble, supporting t...
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NASA's Webb and Hubble Capture Spooky, ‘Blood-Soaked Eyes’ Galaxies IC 2163 and NGC 2207
NASA's Hubble and James Webb telescopes have captured the breathtaking merger of galaxies IC 2163 and NGC 2207, located 80 million light-years away. This captivating process, described as a “blood-soaked” cosmic dance, showcases the ongoing star formation occurring between the galaxies as they interact. With an impressive rate of star birth and...
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Astronomers Observe Black Hole That May Have Formed Gently
The conventional wisdom among astronomers is that black holes - those exceptionally dense objects with gravity so powerful that not even light can escape - form in the violent explosion, called a supernova, of a massive dying star.
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James Webb Space Telescope Unveils Hidden Interstellar Wonders of Supernova Cassiopeia A
The James Webb Space Telescope has provided a rare glimpse into the remnants of a centuries-old supernova in Cassiopeia A. Using infrared technology, the telescope captured a light echo caused by a massive star’s explosion, unveiling new insights into the interstellar medium and its magnetic structures. This breakthrough discovery offers valuable...
-
James Webb Space Telescope Detects Supernova From 11.4 Billion Years Ago
Astronomers using the James Webb Space Telescope (JWST) have identified AT 2023adsv, a supernova that occurred 11.4 billion years ago. This stellar explosion, from a star 20 times the size of the Sun, offers a glimpse into the early universe's unique stellar evolution. Part of the JWST Advanced Deep Extragalactic Survey, the event highlights how th...
-
White Dwarf’s Unexplainable Rapid Spin Finally Decoded by Scientists
The white dwarf star RX J0648.0–4418, 1,700 light-years away, spins at a rapid pace of 13 seconds per rotation. Part of a binary system with a helium-burning hot subdwarf star, it continues to shrink while accreting material. This rare and short-lived system provides a unique view into stellar evolution. Approaching the Chandrasekhar limit, RX J0...
-
Supernova Remnant G278.94+1.35 is Closer to Earth, Claims New Study
Astronomers discovered that the supernova remnant G278.94+1.35 is located just 3,300 light years away, much closer than previously believed. Initially thought to span over 500 light years, it is now estimated to measure around 189 by 182 light years. Named "Diprotodon" after Australia’s extinct giant marsupial, this structure remains in an expand...
-
Astronomers Spot New Cosmic Explosions 100 Times Brighter Than the Sun
Astronomers have discovered a new class of cosmic explosions, known as 'millinovas,' which are 100 times brighter than the Sun. These events, first identified in 2023, were observed in the Large and Small Magellanic Clouds, two satellite galaxies of the Milky Way. The millinovas are thought to occur when white dwarfs feed off a companion star, prod...
-
Scientists Develop New Approach to Capture Gravitational Wave Memory from Supernovae
A study published in Physical Review Letters highlights new methods to detect the gravitational wave memory effect, a unique phenomenon predicted by Einstein's general relativity. Core-collapse supernovae (massive stellar explosions) generate these low-frequency gravitational waves, offering a rare glimpse into stellar interiors. Despite their weak...
-
Namibian Observatory Spots Highest Energy Cosmic Electrons Opening Better Understanding of Cosmic Rays
The H.E.S.S. Observatory in Namibia has detected the highest-energy cosmic ray electrons ever observed, suggesting sources within a few hundred light-years. The findings point to extreme phenomena like pulsars and supernova remnants, offering insights into cosmic processes and particle accelerators. The breakthrough provides crucial data for future...
-
Crab Nebula’s Strange Zebra Pattern Pulsars Could Be Due to Its Unusual Plasma Density
The Crab Nebula, home to the Crab Pulsar, has long fascinated astronomers due to its unique zebra-like radiation pattern. This strange emission, which has puzzled researchers since its discovery in 2007, is now explained by new research. A team led by Mikhail Medvedev, a physicist at the University of Kansas, uncovered that the unusual pattern is c...
-
First Zoomed-in Picture of a Star Outside Our Galaxy Captured, Revealed to Be a Dying Star
The first detailed image of a star outside the Milky Way reveals WOH G64, a giant nearing its end. Captured by the Very Large Telescope Interferometer, this dying star, 1,500 times the size of the Sun, is surrounded by a cocoon of gas and dust, hinting at its eventual collapse into a supernova.
-
A Nearby Supernova May End Dark Matter Search, Claims New Study
A supernova within the Milky Way could revolutionise dark matter research by producing gamma rays from axions, elusive particles theorised to exist during a star's core collapse. Scientists at UC Berkeley are calling for gamma-ray telescopes to monitor the sky, ensuring readiness for the next nearby supernova. Such an event could confirm the axion'...
-
Never-Seen-Before Image Of Dying Star On Verge Of Supernova Captured
The star, identified as WOH G64, is located 160,000 light-years from us in the Large Magellanic Cloud and is on the verge of dying.
-
Could a Supernova Threaten Earth’s Survival? Here's What You Need to Know
Supernova explosions have the potential to harm Earth’s atmosphere, particularly the ozone layer. However, no stars close enough to cause damage are currently identified. The risks are low, but gamma-ray bursts, caused by neutron star mergers, may pose an even greater threat in the future.
-
New 3D Map of Local Hot Bubble Reveals Interstellar Tunnel to Superbubble
Using data from the eROSITA All-Sky Survey, astronomers mapped the Local Hot Bubble in 3D, finding a new interstellar tunnel leading towards Centaurus. This tunnel may link the bubble with another galactic superbubble, hinting at a broader network of gas corridors. The eROSITA data also unveils temperature variations within the bubble, supporting t...
-
NASA's Webb and Hubble Capture Spooky, ‘Blood-Soaked Eyes’ Galaxies IC 2163 and NGC 2207
NASA's Hubble and James Webb telescopes have captured the breathtaking merger of galaxies IC 2163 and NGC 2207, located 80 million light-years away. This captivating process, described as a “blood-soaked” cosmic dance, showcases the ongoing star formation occurring between the galaxies as they interact. With an impressive rate of star birth and...
-
Astronomers Observe Black Hole That May Have Formed Gently
The conventional wisdom among astronomers is that black holes - those exceptionally dense objects with gravity so powerful that not even light can escape - form in the violent explosion, called a supernova, of a massive dying star.
