New research provides the clearest evidence yet that the Cambrian explosion—a rapid burst of evolution 540 million years ago, could have been triggered by only a small increase in oxygen levels in Earth's atmosphere and ...
Evolution
Jul 2, 2024
1
246
Using Spektr-RG and Fermi space observatories, German astronomers have investigated the supernova remnant SNR G309.8+00.0 in X-rays and gamma rays. Results of the new study, presented June 25 on the preprint server arXiv, ...
If you've ever visited the fossil gallery of a natural history museum—or its gift shop, for that matter—you've probably seen the armored body remains (or exoskeletons) of an extinct group of animals called trilobites. ...
Paleontology & Fossils
Jun 29, 2024
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12
A French-Chinese telescope satellite will blast off this weekend on a mission to hunt down gamma-ray bursts, the most powerful explosions in the universe.
Astronomy
Jun 20, 2024
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199
A team of scientists used the NASA/ESA/CSA James Webb Space Telescope to parse the composition of the Crab Nebula, a supernova remnant located 6,500 light-years away in the constellation Taurus. With the telescope's MIRI ...
Astronomy
Jun 17, 2024
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116
Video footage of Iceland's 2010 Eyjafjallajökull eruption is providing researchers from the University of Cambridge with rare, up-close observations of volcanic ash clouds—information that could help better forecast how ...
Earth Sciences
Jun 13, 2024
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2
Scientists at the University of Warwick are using artificial intelligence (AI) to analyze cosmic explosions known as supernovae. Their paper is published in Monthly Notices of the Royal Astronomical Society.
Astronomy
May 31, 2024
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241
As life on Earth rapidly expanded a little over 500 million years ago during the Cambrian explosion, Earth had tectonic plates slowly crashing into each other, building mountains and starting a series of unfortunate events ...
Earth Sciences
May 31, 2024
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2112
For the size of any population to remain stable over time, its birth and death rates must be balanced. If the birthrate is too high, there could be a population explosion; if it is too low, the population will shrink. This ...
Cell & Microbiology
May 28, 2024
0
78
An international team of astronomers have performed photometric and spectroscopic observations of a Type Ibn supernova, known as SN 2023fyq. Results of the observations campaign, published May 7 on the pre-print server arXiv, ...
An explosion is a rapid increase in volume and release of energy in an extreme manner, usually with the generation of high temperatures and the release of gases. An explosion creates a shock wave. If the shock wave is a supersonic detonation, then the source of the blast is called a "high explosive". Subsonic shock waves are created by low explosives through the slower burning process known as deflagration.
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