(Phys.org)—A nearby short duration gamma-ray burst may be the cause of an intense blast of high-energy radiation that hit the Earth in the 8th century, according to new research led by astronomers Valeri Hambaryan and Ralph ...
Astronomy
Jan 21, 2013
55
0
(Phys.org) -- A supernova may have actually been the mysterious "Red Crucifix" in the sky that is cited in the Anglo Saxon Chronicle for the year 774. New correspondence between a university student and Nature carries interesting ...
A University of Arizona tree-ring expert is closer than ever to pinning down the date of the infamous Thera volcano eruption—a goal she has pursued for decades.
Earth Sciences
May 2, 2022
3
462
Charlotte Pearson's eyes scanned a palm-sized chunk of ancient tree. They settled on a ring that looked "unusually light," and she made a note without giving it a second thought. Three years later, and armed with new methodology ...
Earth Sciences
Mar 30, 2020
5
1122
Without a doubt, Tyrannosaurus rex is the most famous dinosaur in the world. The 40-foot-long predator with bone crushing teeth inside a five-foot long head are the stuff of legend. Now, a look within the bones of two mid-sized, ...
Archaeology
Jan 1, 2020
0
969
A University of Queensland study has shed new light on a mysterious, unpredictable and potentially devastating kind of astrophysical event.
Astronomy
Oct 25, 2022
4
408
Beneath the turquoise waters of Lake Ohrid, the "Pearl of the Balkans", scientists have uncovered what may be one of Europe's earliest sedentary communities, and are trying to solve the mystery of why it sheltered behind ...
Archaeology
Aug 11, 2023
3
520
In February, a 7.8-magnitude earthquake shook the Turkey-Syria border, followed by one nearly as large nine hours later. Shallow faults less than 18 miles beneath the surface buckled and ruptured, causing violent focused ...
Earth Sciences
Sep 27, 2023
0
182
Oxford University researchers say that trees which grew during intense radiation bursts in the past have 'time-markers' in their tree-rings that could help archaeologists date events from thousands of years ago.
Earth Sciences
Aug 16, 2016
1
1390
The sun constantly emits a stream of energetic particles, some of which reach Earth. The density and energy of this stream form the basis of space weather, which can interfere with the operation of satellites and other spacecraft. ...
Earth Sciences
Jul 13, 2021
15
1907
