A silicone frog built by engineers at Denmark’s Aarhus University can’t swim nearly as fast as its amphibian inspiration, but it still manages to get the job done without any moving parts. The odd invention owes its slow-but-steady aquatic maneuvering to a set of six artificial muscles specially designed to contract when exposed to near-infrared
Astronauts James A. Lovell Jr. and Edwin E. “Buzz” Aldrin Jr. orbited Earth from November 11 to 15, 1966, on Gemini XII, the final mission of NASA’s Gemini program. In addition to successfully completing rendezvous maneuvers and spacewalks, procedures vital to sending American astronauts to the Moon, the crew was also spurring the development of
Using NASA’s Chandra X-ray Observatory, astronomers have discovered what is triggering repeated outbursts from a giant, unstable star located in the galaxy shown in this image released on Nov. 9, 2026. The volatile star, known as AT 2016blu, is in the spiral galaxy NGC 4559, located about 30 million light-years from Earth. Astronomers estimate the
Many of the Muppets are pretty easy to pin down, species-wise. Kermit is a frog. Fonzie is a bear. Miss Piggy is, obviously, a feisty piggy. But Gonzo—with his blue-ish fur, bulging eyes, tuft of purple feathers, and long, curved nose that looks a little like a beak—is something of an enigma. The writers of
The so-called “weekend warrior” exercise approach offers an enticing trade: skip the workouts all week, and cram them into one or two days instead. It sounded great to me, until I realized it could turn my hard-earned “Thank God it’s Friday” into “Oh God, it’s Friday.” Still, for people who genuinely lack the time to
We may earn revenue from the products available on this page and participate in affiliate programs. Learn more › It seems like just yesterday I was thinking about the first mow of the season. Now, snow is on the way here at PopSci HQ and I ahve to think about a snow blower. Luckily, Greenworks