President Donald Trump and his NASA administrator are reviving the Pluto debate again — apparently at the urging of “Star ...

Step onto Pluto’s frozen terrain with New Horizons as we explore its heart-shaped plains, towering mountains, potential cryovolcanoes, and enigmatic dark regions like Cthulu Macula. Discover the ...

Pluto lost its planetary status in 2006. Nearly two decades later, people are still arguing about it — and now the argument has reached the White House. NASA Administrator Jared Isaacman told the ...

Test your understanding of planets, space facts, and celestial bodies with an easy-to-follow quiz on the solar system.

The Solar System is a weird place filled with incredible physics and geological oddities that often break down in human terms ...

Discovered in 1930 at the Lowell Observatory, Pluto was demoted as a planet in 2006. Some want President Trump to take action ...

NASA chief Jared Issacman appears to be among those who support Pluto being reclassified as a planet. Could President Trump sign an executive order?

Beyond the asteroid belt lies a vast region dominated by giant planets and frozen worlds. This video explores the colossal ...

This solar system montage of the nine planets and four large moons of Jupiter in our solar system are set against a false-color view of the Rosette Nebula Credit: NASA/JPL/ASU PEEC NEWS RELEASE ...

Astronomers have observed a planetary system that challenges current planet formation theories, with a rocky planet that formed beyond the orbits of its gaseous neighbors, possibly after much of the ...

On 12 August 2026, a total solar eclipse will be visible from Greenland, Iceland and northern Spain, making it the first to pass over mainland Europe since 1999. Our stories cover all you need to know ...