Science

Fossilized skeletons of aerial and aquatic predators to be auctioned by Sotheby's

https://ground.news/article/fossilized-skeletons-of-aerial-and-aquatic-predators-to-be-auctioned-by-sothebys_2e1db3

https://www.hexbear.net/post/246642

In wait for federation.

cross-posted from: https://lemmy.ml/post/1871351

Scientists use the LOFAR telescope to observe low-frequency radio waves from satellites in large constellations for the first time. “Unintended electromagnetic radiation” emanating from onboard electronics in Starlink satellites was detected which could impact astronomical research. Further study is now ongoing.

Charged cosmic rays, high-energy clusters of particles moving through space, were first described in 1912 by physicist Victor Hess. Since their discovery, they have been the topic of numerous astrophysics studies aimed at better understanding their origin, acceleration and propagation through space, using satellite data or other experimental methods.

The Alpha Magnetic Spectrometer (AMS) collaboration, a large research group analyzing data collected by a large magnetic spectrometer in space, recently gathered new insight about the properties and composition of specific types of cosmic rays. In a new paper, published in Physical Review Letters (PRL), they specifically unveiled the composition of primary cosmic-ray carbon, neon, and magnesium, along with the composition and properties of cosmic-ray sulfur.

CNN — Almost half of the tap water in the US is contaminated with chemicals known as “forever chemicals,” according to a new study from the US Geological Survey.

The number of people drinking contaminated water may be even higher than what the study found, however, because the researchers weren’t able to test for all of these per- and polyfluorinated alkyl substances, or PFAS, chemicals that are considered dangerous to human health. There are more than 12,000 types of PFAS, according to the National Institutes of Health, but this study looked at only 32 of the compounds.

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The scientists collected water samples directly from taps at 716 locations – 269 from private wells and 447 from public sources – between 2016 and 2021. Based on their findings, they estimate that at least one PFAS chemical would be detected in 45% of US drinking water samples.