When a star explodes (a supernova), it sends its intense burst of light out in all directions. On rare occasions, in the months and years that follow, rings of light or "light echoes" spread out from the original supernova ...
Astronomy
Oct 28, 2022
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574
Last year, forests across southern Québec and Ontario and much of New England turned eerily leafless. The air hummed with the sound of munching mandibles and tree trunks were covered with a writhing carpet of caterpillars, ...
Plants & Animals
Oct 24, 2022
0
7
In the blockbuster fantasy series The Lord of the Rings: The Rings of Power, one of the principal antagonists, the wicked Adar, diverted a river into the labyrinth of tunnels under a dormant Mount Doom to trigger an explosive ...
Earth Sciences
Oct 18, 2022
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82
Using NASA's Chandra X-ray observatory, astronomers have carried out an X-ray proper motion study of a supernova remnant known as SNR 0509-67.5. Results of the research, published October 5 on arXiv.org, yield essential information ...
Astronomers around the world are captivated by an unusually bright and long-lasting pulse of high-energy radiation that swept over Earth on Sunday, Oct. 9. The emission came from a gamma-ray burst (GRB)—the most powerful ...
Astronomy
Oct 13, 2022
1
1714
In 1883, there was a volcanic eruption so large it killed tens of thousands of people. It expelled so much ash that, for a time, it changed the colors of sunsets and the palette with which impressionist artists painted. In ...
Earth Sciences
Sep 29, 2022
0
64
Tactical nuclear weapons have burst onto the international stage as Russian President Vladimir Putin, facing battlefield losses in eastern Ukraine, has threatened that Russia will "make use of all weapon systems available ...
Political science
Sep 29, 2022
1
3
An international team of scientists, including from the Universities of Bristol and Oxford, and the Natural History Museum, have discovered that a well-preserved, fossilized worm dating from 518 million years ago resembles ...
Evolution
Sep 27, 2022
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430
As the climate crisis continues to affect the American West, sunken boats and human remains aren't the only surprises to be revealed by record-low water levels at Lake Mead. Sedimentary rocks that hadn't been seen since the ...
Earth Sciences
Sep 27, 2022
0
11
Fast radio bursts (FRBs) are millisecond-long cosmic explosions that each produce the energy equivalent to the sun's annual output. More than 15 years after the deep-space pulses of electromagnetic radio waves were first ...
Astronomy
Sep 22, 2022
7
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