Sid Perkins
Sid Perkins is a freelance science writer based in Crossville, Tenn.
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All Stories by Sid Perkins
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Astronomy
Barnard’s star has at least one planet orbiting it after all
After decades of searching, a telltale gravitational wobble points to an exoplanet orbiting the nearby red dwarf every 3.15 days.
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Astronomy
Starlink satellites’ leaky radio waves obscure the cosmos
Starlink satellites unintentionally emit radio waves that appear more than 10 million times brighter than natural sources, as seen by ground-based radio telescopes.
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Climate
Zapping sand to create rock could help curb coastal erosion
Low voltages generated minerals that help bind the sand into erosion-resistant rock, offering hope for shorelines ravaged by waves.
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Space
Scientists are getting serious about UFOs. Here’s why
UFOs have been rebranded as UAPs (unidentified anomalous phenomena). Probably not aliens, they might impact national security and aircraft safety.
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Oceans
In a seafloor surprise, metal-rich chunks may generate deep-sea oxygen
Instead of sinking from the surface, some deep-sea oxygen may be created by battery-like nodules that split water into hydrogen and oxygen.
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Earth
An ancient earthquake changed the course of the Ganges River
Flooding from a similar earthquake today could threaten about 170 million people in India and Bangladesh who live in low-lying regions nearby.
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Rock from the impact that formed the moon may linger in Earth’s mantle
When the young Earth and a Mars-sized body collided 4.5 billion years ago, it left behind dense mantle rock that survives to today, a study finds.
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Planetary Science
Here’s another strike against Venus having copious lightning
Past data and the Parker Solar Probe’s new discovery of weird whistler waves overturn the idea that Venus’ hellish atmosphere has a lot of lightning.
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Paleontology
A one-of-a-kind trilobite fossil hints at what and how these creatures ate
The preserved contents suggest the trilobite fed almost continuously and had a gut environment with an alkaline or neutral pH, researchers say.
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Planetary Science
Flashes in Venus’ atmosphere might be meteors, not lightning
With upcoming missions planned for Venus, scientists are eager to figure out the origin of the mysterious flashes.
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Planetary Science
NASA’s DART mission lofted a swarm of boulders into space
Hubble telescope images of the asteroid Dimorphos reveal a halo of 37 dim, newfound objects — most likely boulders shaken loose from the surface.
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Science & Society
Humans exploit about one-third of wild vertebrate species
An analysis of nearly 47,000 vertebrate animal species reveals that using them for food, medicine or the pet trade is helping push some toward extinction.