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News
How Much Sleep Do You Need? Turns Out, It's Probably Not 8 Hours
2+ hour, 32+ min ago (243+ words) A study found the optimal amount between 6.4 and 7.8 hours. Others say more....
A Meteor Crashed Into Mars and Sent Shockwaves Racing Across the Planet. It Apparently Happens More Often Than We Thought
1+ mon, 3+ week ago (323+ words) There's a hidden "seismic highway" beneath Mars' surface. On February 19, 2021, a rock from space slammed into Mars, carving a 21.5-meter-wide crater and sending seismic waves rippling across the planet. These waves traveled exactly 1,640 kilometers before reaching NASA’s InSight lander, which…...
A Polynesian Lunar Calendar May Also Be a Map of an Epic Human Migration
12+ hour, 59+ min ago (649+ words) Moon-night reveal traces of one of the greatest migrations in human history....
A Comet Photobombed a Powerful Telescope and Revealed Something Astronomers Rarely See
15+ hour, 32+ min ago (540+ words) The accidental image exposed a comet surface unlike the asteroids it resembles. The accidental appearance of Comet 28P/Neujmin by the Subaru Telescope gave researchers a rare look directly at its solid nucleus. It also showed astronomers something they weren’t expecting....
Meet Connor Hill, the 17-Year-Old Who Found 85 New "Noble" Mathematical Shapes That Everyone Was Missing
16+ hour, 29+ min ago (277+ words) His computer-assisted proof completed a geometry catalogue left unfinished for more than a century....
Invisible Changes to White Light Made Rooms Feel Cooler and Could Cut AC Energy Use by Up to 11.4%
16+ hour, 53+ min ago (63+ words) A novel experiment suggests light spectra could subtly widen thermostat comfort zones....
A Japanese Engineer Connected 1,500 Boxes of Soil to Power 800 LEDs
17+ hour, 5+ min ago (973+ words) Can we use soil to generate electricity? Yes we can, but it will have a different use case. A small laboratory in Japan is glowing at night, but its electricity isn’t coming from the grid. Instead, about 1,500 wooden boxes filled…...
Europe’s Stone Age Hunters Crossed Open Sea to Malta Thousands of Years Before Sails Were Invented
18+ hour, 39+ min ago (669+ words) People reached the Mediterranean island at least 8,500 years ago....
How Do Birds Find Bird Feeders? Mostly by Watching Each Other
20+ hour, 7+ min ago (116+ words) An empty feeder is not the birds ignoring you. There's more to it....
Thunderstorms Create Tiny Quakes That Can Reveal What Lies Underground
20+ hour, 33+ min ago (579+ words) Buried fiber-optic cables turned 458 thunderquakes into a map of hidden weak rock. During a thunderstorm, each clap hits against the surface, sending faint vibrations through soil and rock. Beneath Penn State’s University Park campus, an ordinary telecommunications cable felt those…...