Astronomers from Istanbul University in Turkey have conducted a comprehensive study of a Galactic open cluster known as Collinder 74. Results of the study, presented in a paper published October 20 on the pre-print server ...
Heavy precipitation, wind storms, heat waves—when severe weather events such as these occur they are frequently attributed to a wavy jet stream. The jet stream is a powerful air current in the upper troposphere that balances ...
Earth Sciences
Nov 1, 2023
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34
What's going on with Betelgeuse? In recent years it's generated a lot of headlines as its luminosity has shifted dramatically several times. The red supergiant brightened by almost 50% earlier this year, triggering speculation ...
Astronomy
Nov 1, 2023
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49
Ocean warming has accelerated dramatically since the 1990s, nearly doubling during 2010–2020 relative to 1990–2000, according to new UNSW Sydney-led research.
Earth Sciences
Nov 1, 2023
0
49
A RUDN University mathematician and a colleague developed a theoretical model of mass extinction. The model for the first time took into account two important factors—the inverse effect of vegetation on climate change and ...
Mathematics
Oct 31, 2023
1
96
An international team of astronomers reports the detection of a new extremely metal-poor star using the Gemini High-resolution Optical SpecTrograph (GHOST) at the Gemini South telescope in Chile. The finding was presented ...
Around 66 million years ago, an asteroid bigger than Mount Everest smashed into Earth, killing off three quarters of all life on the planet—including the dinosaurs.
Earth Sciences
Oct 30, 2023
0
302
Using the James Webb Space Telescope (JWST), astronomers have performed near-infrared observations of a dwarf galaxy known as Ark 227. The observational campaign led to the serendipitous discovery of an extended stellar halo ...
While Atlantis—a fabled continent said to have been swallowed by the sea—continues to elude its seekers, another long-lost and less famous land mass has been discovered at the bottom of the ocean.
Earth Sciences
Oct 28, 2023
0
140
PFAS, a family of highly fluorinated substances, represent a danger for humans and the environment. Particularly problematic members of this family, such as perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) ...
Polymers
Oct 27, 2023
1
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