Astronomers have identified a giant planet circling a tiny red dwarf star at a distance so extreme that it sits about 690 ...

Planetary size was determined pre-spacecraft by measuring the planet's angular diameter and its distance from Earth (in AU, later converted to terrestrial units after the AU was accurately measured ...

Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits.

PSR J2322-2650 b is pulled and stretched with a lemon-like appearance due to the immense gravity that surrounds it. The gravity is so strong that the planet cannot retain its spherical shape. Instead, ...

What a surprise to discover a planet that instantly evokes the Star Wars universe! Instead of a single sun, it orbits two ...

Rocky planets that are about earth-size, or maybe two to three times larger, will offer the best chances for simple microbial life, says geodynamicist. Despite endless debate on how and why earth has ...

For centuries our solar system was the only planetary system known to humans. We had no proof other worlds existed beyond those in our own cosmic backyard, and we imagined that if other planetary ...