Mercury, the planet of communication and thought, began its retrograde in Sagittarius on November 9, spotlighting truth, ...

Mars is a cold, dry, desert-like planet. But billions of years ago, scientific evidence suggests that it had a thick ...

For the first time in years, astronomers are seriously talking about adding a new member to the solar system’s planetary ...

It's an evocative idea that has long bedeviled scientists: a huge and mysterious planet is lurking in the darkness at the edge of our solar system, evading all our efforts to spot it. Some astronomers ...

A visible line of planets has for weeks been the talk of astronomers and hobbyist stargazers who have sought to catch a sight of our solar system's worlds. Online chatter and a frenzy of media ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration of confirmed dwarf planets and their moons. From left to right: Pluto (with ...

Scientists from the University of Cambridge announced this week what they believe is the strongest evidence so far of extraterrestrial life. The place in question is not within our solar system, but ...

NASA’s James Webb Space Telescope’s observations of what is thought to be the first ever recorded planetary engulfment event revealed a hot accretion disk surrounding the star, with an expanding cloud ...

Searching for life on other planets requires more than just measuring their distances from their stars. A future NASA ...

Our Moon is slowly drifting away from Earth, not just due to tidal friction as previously thought. New research suggests ancient planetary impacts and ...