For decades, astronomers have known that supermassive black holes lurk at the hearts of essentially all large galaxies, occasionally feasting on infalling material and burping out powerful jets. But what’s been less clear is how, exactly, this activity sh... See more
- Dec 19, 2025, 10:05 pm26 ptsArs TechnicaThe trade-off between quality and quantity is a fundamental economic dilemma. Now, a team of British, American, and Japanese researchers describes how it applies to biology, as well. They have discovered that this... See more
Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of Earth’s mantle and ejecting a huge debris disk that later formed the moon. Scientists have long wondered what Theia was made of and... See more
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Nov 13, 2025, 4:11 pm36 ptsArs TechnicaStandard brain implants use electrodes that penetrate the gray matter to stimulate and record the activity of neurons. These typically need to be put in place via a surgical procedure. To go around that need, a tea... See more
