You probably know sea stars as starfish, the name sea stars are commonly known by. But sea stars aren’t really fish. Sea stars, like sea urchins and sand dollars, do not have backbones, which makes them part of a group called invertebrates.

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. T Coronae Borealis (T CrB) is a "recurrent nova," a binary system that consists of a white dwarf star and a red giant star. Astronomers around the ...

Mountainous star coral, along with boulder star coral and lobed star coral, make up the star coral species complex. The species complex was considered a single species with growth forms ranging from columns, to massive boulders, to plates but was split ...

A potential Tatooine -like planet from Star Wars of Earth’s size in a nearby binary star system can hold liquid water and support life, according to a new study that could expand the search for such habitable planets. The two-star system called 70 Ophiuchi is trillions of miles from Earth, but is considered relatively nearby in cosmic terms.

Astronomers have uncovered evidence of a rare second-generation planet orbiting a dead star, suggesting new worlds can form from the ashes of dying stars.

Astronomers say a dead star about 326 light-years away, one that has been taking in...