Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
Slashdot Deals: Prep for the CompTIA A+ certification exam. Save 95% on the CompTIA IT Certification Bundle ×
Space

Submission + - Earth may have been hit by a gamma-ray burst in 775 AD

The Bad Astronomer writes: "Studies of carbon-14 in Japanese trees and beryllium-10 in Antarctic ice indicate the Earth was hit by a big radiation blast in 775 AD. Although very rare, occurring only once every million years or so, the most likely culprit is a gamma-ray burst, a cosmic explosion accompanying the birth of a black hole. While a big solar flare is still in the running, a GRB from merging neutron stars produces the ratio of carbon an beryllium observed, and also can explain why no bright explosion was seen at the time, and no supernova remnant is seen now."
This discussion was created for logged-in users only, but now has been archived. No new comments can be posted.

Earth may have been hit by a gamma-ray burst in 775 AD

Comments Filter:

When a fellow says, "It ain't the money but the principle of the thing," it's the money. -- Kim Hubbard

Working...