To understand how chaotic the early solar system was, we need only gaze at the moon. Its cratered surface bears the scars of ...

Over the past decade or so, astronomers have speculated about the characteristics of rogue planets in the Milky Way galaxy.

WD 1856+534b—a freezing world with a surface temperature of -125 degrees Fahrenheit—exists where planets are normally scoured ...

If the object really is Planet Nine, it would be larger than Neptune and exist 700 times further from the sun than Earth.

An alternate explanation that fits the evidence is that Vesta was once part of a planet – but which planet that might been ...

The planet is "crumbling to pieces," shedding the equivalent of Mount Everest’s mass every 30.5-hour orbit and will be ...

A new study released on Thursday describes a search for what are called "microlensing" events, where a planet acts as a ...

A planet circling at a sharp 90-degree angle to the orbits of its two host stars has now been confirmed. This discovery ...

When a star is born, it doesn’t emerge in isolation. Instead, it forms inside a large, chaotic cloud of gas and dust. Around ...

Stars have long inspired curiosity among observers, but our understanding of their birth and the creation of planets around ...

Researchers say they found a curious dot on infrared images taken 23 years apart that seems to be moving in a manner consistent with a large, distant planet.

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