What Is a Blood Moon?
A blood moon is a total lunar eclipse, the moment when the Moon moves entirely into Earth’s darkest shadow and…
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Were Humans in the Philippines 709,000 Years Ago?
No. Modern humans (Homo sapiens) were not in the Philippines 709,000 years ago. Evidence from the Kalinga site on Luzon…
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Why Iceland Has No Mosquitoes (And What It Means)
Iceland does not have an established population of mosquitoes. Individual mosquitoes occasionally arrive on planes or ships, but repeated surveys…
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Why Scientists Renamed 27 Human Genes Because of Excel (And What It Means)
Scientists renamed 27 human genes in 2020 because Microsoft Excel was automatically converting their symbols into dates, corrupting data in…
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Did T. rex Have Feathers and What Color Were They?
Adult Tyrannosaurus rex were likely mostly scaly, with no confirmed body-covering feathers, though small patches of simple filaments in juveniles…
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Why Do Cats Purr (And What It Means)?
Cats purr because rhythmic activity in the voice box makes the vocal folds vibrate at low frequencies as the cat…
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What Are Cosmic Rays and How Are They Defined?
Cosmic rays are not a special new kind of particle. They are mostly high-energy charged particles, primarily protons and atomic…
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Bomb Cyclone vs Hurricane: What’s the Difference?
A bomb cyclone is a rapidly intensifying extratropical low-pressure system, while a hurricane is a tropical cyclone that forms over…
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The eye test for minds without pictures is getting real
Close your eyes and picture a desk lamp flicking on in a dark room. For most people, the pupils pinch,…
