There's nothing innate about the Earth or its atmosphere that marks the boundaries of low Earth orbit. This is a distinction ...

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 ...

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

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

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

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, ...

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

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

They speculated that this “super-Earth,” with a mass five to seven times that of our planet, could be influencing the orbits ...

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 ...