Gamma-ray Bursts
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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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India Unveils MACE Observatory, the World’s Highest Imaging Cherenkov Telescope
The Major Atmospheric Cherenkov Experiment (MACE) observatory has been inaugurated in Hanle, Ladakh, at an altitude of over 4,300 metres. This state-of-the-art facility will advance India's capabilities in cosmic-ray research and high-energy astrophysics. Inaugurated by Dr Ajit Kumar Mohanty, Secretary of the Department of Atomic Energy, the observ...
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French-Chinese Satellite, Aimed To Seek Out Gamma-Ray Bursts, Launched
A French-Chinese satellite blasted off Saturday on a hunt for the mightiest explosions in the universe, in a notable example of cooperation between a Western power and the Asian giant.
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French-Chinese Satellite To Probe World's Most Powerful Explosions
A French-Chinese telescope satellite will blast off this weekend on a mission to hunt down gamma-ray bursts, the most powerful explosions in the universe.
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ISRO's Space Telescope Spots Over 600 Gamma-Ray Bursts Over 8 Years
India's AstroSat space telescope has achieved a significant milestone by detecting more than 600 Gamma-Ray Burst (GRB), each marking the death of a massive star or merging of neutron stars.
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Largest Cosmic Explosion Ever, Raging For 3 Years, Spotted By Astronomers
Last year, astronomers witnessed the brightest explosion on record - a gamma-ray burst known as GRB 221009A.
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"Once In Every 10,000 years": Astronomers Reveal Brightest Gamma-Ray Explosion In Space
NASA said that the extragalactic outburst was 70 times brighter than any other such eruption recorded to date.
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NASA Detects Most Powerful Gamma-Ray Bursts Close To Earth
The signal originated from the direction of the constellation Sagitta, and travelled an estimated 1.9 billion years to reach Earth, NASA said.
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Neutron Star Collision Captured in Millimetre Light for the First Time
Researchers have found a way to capture millimetre-wavelength light originating from a collision of a neutron star with another star. The flash emerging from this collision was among the most energetic short-duration gamma-ray bursts (GRBs) ever observed, according to the researchers.
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Study Explains Blinking Gamma-Ray Bursts Using Falling Stardust, Unsteady Jets
Astrophysicists have developed the first 3D simulation of the entire evolution of a jet from its birth by a rotating black hole to its emission far from the collapsing star. Simulation explains that as the star collapses, its material falls on the disk that swirls around the black hole. This falling material tilts the disk, and, in turn, tilts the ...
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Indian Astronomers On Team Which Spotted Shortest Gamma-Ray Bursts From Dying Star
A group of astronomers, including from India, has detected a very short, powerful burst of high-energy radiation that lasted for about a second and had been racing towards the earth for nearly half the present age of the universe.
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Spectacular Gamma Radiation From Collapse Of Dying Star Could Change Understanding Of The Universe
Scientists have recorded a cosmic explosion of gamma radiation from a collapsing star that challenges the established theory of gamma-ray bursts. The scientists said that these explosions occur when a massive star abruptly detonates and turns into a black hole.
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Stars Need a Partner to Create Universe's Brightest Explosions, Study Claims
The new research solves the mystery of how stars spin fast enough to create conditions to launch a jet of highly energetic material into space and has found that tidal effects like those between the Moon and the Earth are the answer.
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Cosmic Explosions Even More Powerful Than First Thought: Study
The biggest explosions since the Big Bang set the universe in motion some 13 billion years ago produced even more energy than first thought, scientists said Wednesday.
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Gamma Ray Emission, Trillion Times More Energetic Than Light, Observed
In a cosmic first, researchers have observed the most powerful and luminous yet known energy release -- a trillion times more energetic than visible light -- in the brightest type of electromagnetic events known to occur in the universe called gamma-ray bursts (GRBs).
-
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.
-
India Unveils MACE Observatory, the World’s Highest Imaging Cherenkov Telescope
The Major Atmospheric Cherenkov Experiment (MACE) observatory has been inaugurated in Hanle, Ladakh, at an altitude of over 4,300 metres. This state-of-the-art facility will advance India's capabilities in cosmic-ray research and high-energy astrophysics. Inaugurated by Dr Ajit Kumar Mohanty, Secretary of the Department of Atomic Energy, the observ...
-
French-Chinese Satellite, Aimed To Seek Out Gamma-Ray Bursts, Launched
A French-Chinese satellite blasted off Saturday on a hunt for the mightiest explosions in the universe, in a notable example of cooperation between a Western power and the Asian giant.
-
French-Chinese Satellite To Probe World's Most Powerful Explosions
A French-Chinese telescope satellite will blast off this weekend on a mission to hunt down gamma-ray bursts, the most powerful explosions in the universe.
-
ISRO's Space Telescope Spots Over 600 Gamma-Ray Bursts Over 8 Years
India's AstroSat space telescope has achieved a significant milestone by detecting more than 600 Gamma-Ray Burst (GRB), each marking the death of a massive star or merging of neutron stars.
-
Largest Cosmic Explosion Ever, Raging For 3 Years, Spotted By Astronomers
Last year, astronomers witnessed the brightest explosion on record - a gamma-ray burst known as GRB 221009A.
-
"Once In Every 10,000 years": Astronomers Reveal Brightest Gamma-Ray Explosion In Space
NASA said that the extragalactic outburst was 70 times brighter than any other such eruption recorded to date.
-
NASA Detects Most Powerful Gamma-Ray Bursts Close To Earth
The signal originated from the direction of the constellation Sagitta, and travelled an estimated 1.9 billion years to reach Earth, NASA said.
-
Neutron Star Collision Captured in Millimetre Light for the First Time
Researchers have found a way to capture millimetre-wavelength light originating from a collision of a neutron star with another star. The flash emerging from this collision was among the most energetic short-duration gamma-ray bursts (GRBs) ever observed, according to the researchers.
-
Study Explains Blinking Gamma-Ray Bursts Using Falling Stardust, Unsteady Jets
Astrophysicists have developed the first 3D simulation of the entire evolution of a jet from its birth by a rotating black hole to its emission far from the collapsing star. Simulation explains that as the star collapses, its material falls on the disk that swirls around the black hole. This falling material tilts the disk, and, in turn, tilts the ...
-
Indian Astronomers On Team Which Spotted Shortest Gamma-Ray Bursts From Dying Star
A group of astronomers, including from India, has detected a very short, powerful burst of high-energy radiation that lasted for about a second and had been racing towards the earth for nearly half the present age of the universe.
-
Spectacular Gamma Radiation From Collapse Of Dying Star Could Change Understanding Of The Universe
Scientists have recorded a cosmic explosion of gamma radiation from a collapsing star that challenges the established theory of gamma-ray bursts. The scientists said that these explosions occur when a massive star abruptly detonates and turns into a black hole.
-
Stars Need a Partner to Create Universe's Brightest Explosions, Study Claims
The new research solves the mystery of how stars spin fast enough to create conditions to launch a jet of highly energetic material into space and has found that tidal effects like those between the Moon and the Earth are the answer.
-
Cosmic Explosions Even More Powerful Than First Thought: Study
The biggest explosions since the Big Bang set the universe in motion some 13 billion years ago produced even more energy than first thought, scientists said Wednesday.
-
Gamma Ray Emission, Trillion Times More Energetic Than Light, Observed
In a cosmic first, researchers have observed the most powerful and luminous yet known energy release -- a trillion times more energetic than visible light -- in the brightest type of electromagnetic events known to occur in the universe called gamma-ray bursts (GRBs).
