Science
Pulsar's 42-light-year X-ray tail explains mysterious gamma rays
The trail behind PSR J1740+1000 is the longest known and lines up with radiation that had no identified source.
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Physics, biology, chemistry, space, climate and how research is done.
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Science
Perovskite solar cells tuned for seawater work 10 meters down
Cells from Yunnan University capture the blue and green light that reaches that depth and are meant for underwater sensors and robots.
Science
Austrian gravel pit yields 500 Iron Age bars, a European record
The iron weighs more than a metric ton and probably sank with a boat carrying it down the Danube for trade.
Science
Greenland and Antarctica lost 11.3 trillion metric tons of ice
Data from 27 satellites show the melt raised sea levels about 3.1 centimeters, mostly driven by warmer ocean water.
Science
Any moon of Venus would have spiraled down and crashed, model shows
A UC Riverside simulation finds the planet's slow, backward spin drags orbiting moons toward its surface.
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NC State film insulates better than any material found in nature
A hybrid perovskite conducts heat five times worse than silicone while being thousands of times stiffer.
Science
Scientists burned replica scrolls to learn to read Herculaneum ones
Replica papyri written with lead-laced ink were charred in a furnace, and the text stood out clearly on X-ray scans.
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Wild honeybees enter the EU Red List as endangered for the first time
Colonies living in tree hollows are losing their homes, and could drop by more than half within 10 years.
Science
Bolivia's Leopardus tilcayo is the first new wildcat in a century
The spotted cat is smaller than a house cat and known from only two animals, identified through genomes and museum specimens.