Millions of tiny pieces of plastic are swirling around in Earth’s atmosphere and traveling across entire continents, according to a new study. This environmental problem is likely to get much … Read more
Scientists injected dozens of human stem cells into developing monkey embryos, and the resulting hybrids survived for up to 20 days in lab dishes. These human-monkey embryos could someday serve … Read more
What do extreme long-distance swimming and spaceflight have in common? They can both shrink the heart, according to a new study. Both activities reduce the pressure of gravity on the … Read more
When octopuses snooze on the seafloor, their skin sometimes pulses with an array of colors, and at other times, they become pale and plain. These alternating patterns mark two distinct … Read more
As if forest fires and melting ice caps weren’t enough to keep you up at night, here’s a brand new nightmare: global warming is coming for your penis. According to … Read more
More than half a billion years ago, headless sea creatures that looked like leaves, teardrops and coils of rope trawled the primeval seas. Although these primordial animals looked nothing like … Read more
For hundreds of years, people have looked up at the hazy peaks of California’s Santa Lucia Mountains at sunset and seen tall, cloaked figures staring back. Then, within moments, the … Read more
Scientists have identified the 19th form of water ice. The exotic, four-sided crystals of this rare ice variety, now dubbed ice XIX, form at ultra-low temperatures and ultra-high pressures. It … Read more
Having safely landed on Mars on Feb. 18, NASA’s newest rover, Perseverance, is just beginning its scientific exploration of the Red Planet. But sometime in the next few weeks, the … Read more
A “lunar ark” hidden inside the moon’s lava tubes could preserve the sperm, eggs and seeds of millions of Earth’s species, a group of scientists has proposed. The ark, or … Read more
