Researchers have described a new, lower size limit for planets to maintain surface liquid water for long periods of time, extending the so-called Habitable or 'Goldilocks'' Zone for small, low-gravity ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. This article is more than 6 years old. Should the 'habitable ...

Want life? Don't get too close to a gas giant planet. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Like huge playground bullies, planets like ...

Could a lonely planet wander aimlessly through the restless galaxy change the subtle dance of gravity within our solar system ...

AB Aurigae b is a newly forming planet projected to be nine times the size of Jupiter. Images of the exoplanet were captured by the Hubble Space and Subaru telescopes. New research supports the "disk ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Editor's Note: Learn more about the announcement of the first Earth-size alien planets found in ...

One of the most terrifying prospects here on Earth is that of our planet being struck by a large, massive, fast-moving asteroid or comet. Even a modest fragment of such an object can strike Earth with ...

In 1906, astronomer and businessman Percival Lowell launched a search for "Planet X," a hypothetical giant planet orbiting the sun beyond Neptune. Lowell was convinced that Planet X existed based on ...

In The Little Prince, the classic novella by Antoine de Saint-Exupéry, the titular prince lives on a house-sized asteroid so small that he can watch the sunset any time of day by moving his chair a ...