Astronomers have discovered that "super-Earth" planets may exist on wider orbits than previously thought — and this implies these rocky, or "terrestrial," worlds are far more common than was suspected ...

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

Scientists have discovered a new way to uncover what lies beneath the surfaces of planets like Mars by studying the debris ...

Astronomers believe that Planet Nine could be 5-7 times the size of Earth and situated more than 200 times farther from the sun than our planet. It is believed to orbit the Sun in 10,000 to 20,000 ...

NASA researchers have discovered evidence of tectonic activity on Venus by re-examining decades-old radar data. The findings ...

What is so spectacular about this Martian aurora discovery, considering that scientists have captured and reported several ...