Supernova, Earth and extinction event

Could Supernovae Have Triggered Ancient Mass Extinctions on Earth?
Exploding stars in near-solar space may have triggered at least two mass extinction events in Earth’s history. A new study led by astrophysicist Alexis Quintana from the University of Alicante suggests that supernovae—the violent deaths of massive stars—could be responsible for the Late Ordovician and Late Devonian extinction events.
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.
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.
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.
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, in a statement. "This research suggests that this may have already happened."
A Supernova May Have Sparked Evolution In Africa, Scientists Say
About 2.5 million years ago, the viruses infecting fish in Lake Tanganyika underwent a mysterious explosion in diversity. It may have been a nearby star exploding.
EurekAlert!19d
At the origin of mega-magnetic stars
Magnetars are a class of neutron stars with the strongest magnetic fields in the Universe. These incredibly dense objects are central in the landscape of extreme phenomena such as hypernovae, fast ...
Neutron Stars Gone Wild: How Magnetars Get Their Insane Magnetic Power
A breakthrough simulation reveals how magnetars form and evolve, solving a key mystery about their magnetic origins.
Phys.org4d
Supernova simulations show that low-mass star in binary system J0453+1559 could be a neutron star
Notably, these two types of stars have different origins: a neutron star is formed when a massive star undergoes a supernova explosion ... fuel and sheds its outer layers. Researchers at Monash ...
Astronomy on MSN9d
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 ...
Space on MSN11d
Sparkling galaxy blazes with star formation in new James Webb Space Telescope image
This type of supernova occurs when the star nearing the end of its life is at least eight times as massive as the sun. The ...
Live Science on MSN5d
Space photo of the week: Hubble hunts a stellar 'imposter' hiding in the Great Bear
The legendary Hubble Space Telescope has turned its gaze to the Ursa Major-adjacent galaxy UGC 5460, revealing spiral arms, ...