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The world’s first dentist was a Neanderthal, according to a recent study.
59,000 years ago in what’s now southwestern Siberia, a Neanderthal had a toothache. It must have been a doozy because they were desperate enough to sit still while someone drilled into the tooth with a sharp stone tool, removing the infected tissue and ultimately relieving the pain.
The pr...
For decades, astronomers looking through telescopes like Hubble have been trying to catch a glimpse of the ancient epoch when the Universe's first generation of stars ignited. But the small galaxies that were the building blocks of the cosmos we know today were too faint to spot, even by the most powerful instruments. Now it seems astronomers finally have two things on their ...
For the third time in three years, SpaceX has stacked a new version of its enormous Starship rocket on a launch pad in South Texas, just a few miles north of the US-Mexico border. The newest-generation Starship, known as Starship Version 3, is taller and more powerful than the ones that came before it.
The upgrades on Starship are numerous. Perhaps the most notable cha...
On a bright afternoon in Jiangsu, China, Xin Yin is playing personal trainer to some mice. One by one, he sets the rodents on a miniature treadmill that starts slow and gradually speeds up. These littermates are born athletes, able to run farther with less lactic acid buildup than average laboratory mice.
The secret to their speediness isn’t carried in their genes—the ...
At 5:26 am local time on August 10, 2025, a massive wedge of rock with a volume of at least 63.5 million cubic meters detached from a mountain above Alaska’s Tracy Arm fjord. The falling rock plummeted into the deep waters at the terminus of the South Sawyer Glacier and caused an initial 100-meter-high breaking wave that tore across the fjord at speeds exceeding 70 meters a s...