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 published in Science hopes to address as a ...

Scientists have discovered a bizarre planetary system where a rocky world orbits farther out than giant gas planets, defying long-standing theories of planet formation. The finding hints that some ...

Astronomers are tracking strange orbital patterns in the outer Solar System that suggest a massive unseen planet may exist beyond Neptune.

Add Yahoo as a preferred source to see more of our stories on Google. (Ianm35/iStock/Getty Images Plus) The Solar System is one of the comforting constants of human existence. No matter what else we ...

A white dwarf is usually thought of as the quiet remnant left behind after a star has exhausted its fuel and shed much of itself into space. By that stage, any worlds that once orbited nearby are ...

Planetary scientists have long debated where the material that formed Earth comes from. Despite its location in the inner solar system, they consider it likely that 6–40% of this material must have ...

At the 248th meeting of the American Astronomical Society in Pasadena, California, astronomers learned this week that NSF–DOE Vera C. Rubin Observatory had, in roughly six weeks of early commissioning ...