Earth, Supernova

Supernova study suggests space blasts wiped out ancient life on Earth
Scientists say a supernova explosion close to Earth could be to blame for two extinction events. The post Supernova study suggests space blasts wiped out ancient life on Earth appeared first on Talker.
Violent supernovae 'triggered at least two Earth extinctions,' study suggests
At least two mass extinction events in Earth's history were likely caused by the "devastating" effects of nearby supernova explosions, a new study suggests.
Could a Supernova Near Earth End Life as We Know It?
The universe is a vast and unpredictable place full of wonders and dangers that stir the human imagination. Among these celestial phenomena supernovae—massive stellar explosions—capture ... Read more The post Could a Supernova Near Earth End Life as We Know It?
Violent Supernovae May Have Triggered Two Mass Extinctions
At least two mass extinction events in Earth's history were likely caused by the "devastating" effects of nearby supernova explosions, a new study suggests.
Supernovas may have caused mass extinctions that killed 85% of life on Earth
Exploding stars known as supernovas may have sparked mass extinctions that wiped out up to 85% of animals on Earth. ‘Supernova explosions are some of the most energetic explosions in the Universe’, said Dr Nick Wright,
Two of Earth's mass extinctions were caused by something much worse than asteroids
The rate of stars going supernova near Earth appears to match two mass extinctions -- 372 million years ago and 445 million years ago.
Distant star explosions could have wiped out life on Earth twice
"If a massive star were to explode as a supernova close to the Earth, the results would be devastating for life on Earth," said Nick Wright, an astrophysicist at Keele University in the United Kingdom ...
A Supernova From Deep Space May Have Altered Evolution on Earth Forever, Scientists Say
Sometimes deep space can seem like a cold, uncaring place fully removed from the dramas unfolding on the planet Earth.
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Supernova explosions could have altered evolution on Earth
Astrophysicists have done a bit of crime scene investigation on what’s almost a reverse murder mystery. They’ve traced ...
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DNA-busting radiation from star-killing supernova could have influenced evolution on Earth
Simulating the supernova with computer models, the team suggested that the radiation from this stellar explosion pummeled ...
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Water might have formed long before galaxies
Water might have formed much earlier than previously thought. Computer simulations show supernovae produced significant ...
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The first stars may have flooded the early universe with water
Simulated stellar explosions show that massive early stars could have created plentiful water for future stars and planets to ...