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 ...

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

Potentially dangerous comets could be spotted many years in advance by following the meteoroid trails they leave near Earth, ...

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

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

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

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

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

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 ...

By probing chemical processes observed in the Earth's hot mantle, Cornell scientists have started developing a library of ...

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