After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the ...

A team of astronomers has identified a rocky planet with a mass similar to Earth’s, orbiting a white dwarf star approximately ...

In 2016, scientists Michael Brown and Konstantin Batygin suggested that an unseen Planet Nine could explain the unusual ...

Beyond Neptune lies the Kuiper Belt, a vast region of icy bodies that holds the secrets to the solar system’s formation.

In the time Pluto was found, classified as a planet and reclassified as a dwarf planet, it has not completed one orbit. One ...

Scientists have discovered an Earth-like planet orbiting a dead star 4,000 light years from here, giving us a humbling glimpse into Earth's likely fate.Published in Nature Astronomy, the planet, ...

Happy New Year's on Mars. Martian years are almost twice as long as Earth years. Nov. 12 is the day to celebrate the start of a new red planet orbit around the sun.

Are there hidden planets in our solar system? New technologies, like the powerful Rubin Observatory, brings us closer to ...

With the help of the James Webb Space Telescope, astronomers have discovered an exoplanet with a sulfur-rich atmosphere, a ...

NASA's Parker Solar Probe has been whizzing through space since 2018 at incredible speed, but it has yet to reach its final ...

Exoplanets can be quite different from Earth, but occasionally researchers find one that gives a sneak peak into what the ...

Miranda is the smallest and innermost of Uranus's five round satellites and orbits the planet around once every 1.4 Earth ...