Caroline Delbert is a writer, avid reader, and contributing editor at Pop Mech. She's also an enthusiast of just about ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

Astronomers may have found a candidate for Planet Nine. This planet is beyond Neptune. The finding could be the first ...

The solar system consists of our star, the sun, and everything bound to it by gravity: the planets Mercury, Venus, Earth, ...

The candidate for Planet Nine displayed a tiny ... an unusual clustering of icy bodies -- including comets and dwarf planets -- which stretches from Neptune and outward toward interstellar space.

The Webb telescope has spotted exoplanets circling white dwarf stars, proving that planets can survive their star’s violent ...

For over a century, astronomers have wondered if there's an extra planet in our Solar System that we haven't been able to see ...

Dimethyl sulfide is cool—and a potential biosignature—but scientists are urging caution before we declare a plankton party ...