Detecting exoplanets is one thing, but imaging them is another thing entirely. Astronomers can detect them by the way they ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

Researchers for NASA have identified a new planet outside of our solar system, also known as an exoplanet.Officials said they ...

For years, astronomers have been searching for a mysterious ninth planet lurking in the dark outer reaches of our solar ...

Almost 20 years after Pluto was infamously downgraded from its status as a planet, scientists now believe they have discovered a new planet in our solar system.

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

The NSF-DOE Vera C. Rubin Observatory is set to revolutionize our knowledge of the solar system's "small bodies" -- asteroids, comets and other minor planets.

T here are 8 planets in our solar system. The planets orbit the Sun in elliptical trajectories, and they are all different in size, composition, temperature, and characteristics.