Scientists scuba diving at night in Palau found a “cryptic” sea creature with 17 arms and discovered a new species, a study said. A Capillaster crypticus, or cryptic feather star, seen in its ...

NPR's Ari Shapiro talks with Regina Barber and Aaron Scott of NPR's Short Wave about Antarctica's melting ice, the weird anatomy of sea stars, and how a sleepless night can ease depression in mice.

Night sky for tonight: Visible planets, stars and more in this evening's sky Night sky, June 2025: What you can see tonight [maps] Related: Constellations of the Night Sky: Famous Star Patterns ...

Sea stars are echinoderms, which means spiny skin. While sea stars do have spiny skin, not all echinoderms do. There are more than 7,000 varieties of echinoderms including brittle stars, sand ...

Autumn officially arrives in the Northern Hemisphere on Tuesday, Sept. 22 at 9:31 a.m. EDT (1331 GMT). And consequently, our evening sky is now one in transition.

The long, squiggly arms of a brittle star—a relative of the sea star with baroque tendencies—have a surprising relationship with the rest of its body. Its arms function more or less ...

Sea stars, a type of starfish, can see, with compound eyes at the ends of their legs, though they aren't powerful and their vision is limited to about 13 feet.

Sea stars species vary in what they eat—from mussels, and other shellfish, to snails, small fish, other sea stars and microalgae—but they are top predators, and the intertidal zone will be transformed ...

Over the past decade, the sunflower sea star has gone from a mighty predator of the Pacific Ocean floor to nearing extinction. The Nature Conservancy estimates that 5.75 billion sunflower sea ...