Pluto hasn't been a planet for almost 20 years. In the early 2000s, scientists discovered several objects of a similar size to Pluto. So, during the summer of 2006, members of the International ...

There may soon be three new planets in our solar system. The expansion would be the result of a proposed new definition of what a planet is. The change is controversial, but if adopted by astronomy’s ...

Pluto’s back, baby! Seventeen years after it was demoted from planet to dwarf planet, it is time for Pluto to retake its former title…at least according to our hosts, Chelsea Whyte and Leah Crane. In ...

NASA's New Horizons spacecraft captured this high-resolution enhanced color view of Pluto that is inserted beneath the Short Wave logo. The image combines blue, red and infrared images taken by the ...

This story is part of Short Wave's series Space Camp about all the weird, wonderful things happening in the universe. Check out the rest of the series. If you were born in the last century you might ...

Almost 30 years after the discovery of Pluto’s large moon, Charon, a University of Hawaii astronomer has used a ground-based telescope to take an image of the Pluto system that exceeds the sharpness ...

The first close-approach images from New Horizons are out, and they are spectacular. Both Pluto and its largest moon, Charon, have far younger surfaces than scientists expected. Pluto has mountains ...

The James Webb Space Telescope recently made a groundbreaking discovery, detecting solid carbon dioxide and hydrogen peroxide on the frozen surface of Charon, Pluto's largest moon. This marks the ...