Although astronomers have found thousands of exoplanets, the number of confirmed exomoons—and exorings—is still zero. But ...

Engineers at NASA's Jet Propulsion Laboratory have been gazing at signals that left the solar system before many of today's graduate students were even born ...

Astronomers studying a dim red dwarf star called LHS 1903 have found a four-planet system with an architecture that defies ...

Jupiter-like planet 8 UMi b, named Halla, orbits its host red giant star Baekdu closely. The red giant's merger with a white ...

What can rocky planets orbiting in the outer parts of a solar system teach scientists about planetary formation and evolution? This is what a recent study | Space ...

In a conventional system like our own, rocky planets such as Mercury, Venus, Earth, and Mars orbit closest to the host star. Farther out, gas giants ...

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

Gas giants possibly developed slowly in the solar system. They developed cores layer by layer within a disk of ice and dust ...

Some underrated sci-fi shows are better than they appear and may impress fans of the genre, including forgotten series like ...

Since the 1990s, astronomers have found a handful of other dwarf planets in the belt, such as Eris and Sedna, along with ...

A closer look at the planets around a star called LHS 1903 may just flip our understanding of how planetary systems form.

Typically, from what astronomers have gathered thus far, star systems follow a tidy logic: small, rocky worlds huddle close to the warmth of their star, while massive gas giants bloat up in the colder ...