As an example, GRB221009A is considered a close-by GRB, but it lies 2.4 billion light-years away from Earth—a million times farther away than where a GRB should take place to make an impact on ...

We have to find out if indeed they caused environmental changes in the past,” as reported by Earth.com. Supernovas happen when giant stars, far larger than our sun, burn through their fuel and ...

Supernovae, which occur at the very end of a star’s life and result in a massive explosion, discharge cosmic rays that affect cloud formation on Earth. As cloud formation increases, weather on ...

An exploding star hundreds of light-years from Earth may have played a role in the minor mass extinction 2.59 million years ago.

This month, NASA awarded $500,000 to a research team based in part at the University of Kansas to make the most painstaking assessment ever of the potential damage from a near-Earth supernova.

🌌 Read This Next Can Distant Supernovas Change Earth's Climate? The explosion of a near-Earth supernova has the potential to unleash a cascade of events that would dramatically impact our planet.

This supernova is thought to have occurred between 163 and 326 light-years away (50–100 parsecs) from Earth. For perspective, our closest stellar neighbor, Proxima Centauri, is 4.2 light-years away.

He assembled a list of supernovas that occurred relatively close to Earth over the last 40,000 years. Scientists can study these events by observing the nebulas they left behind.

To study those possible impacts, Brakenridge searched through the planet’s tree ring records for the fingerprints of these distant, cosmic explosions. His findings suggest that relatively close ...

Luckily for Earth, these supernovas are well outside the calculated kill-distance of about 8 parsecs (or around 26 light-years), where such an explosion would be bad news for life.

Scientists say supernovae spread fallout when human ancestors walked the earth by Alan Boyle on April 6, 2016 at 5:47 pm Share 3 Tweet Reddit Email ...