The universe is far more than just a vast emptiness,it's an intricate, mind-boggling realm full of surprises. From the ...

Pluto is so far away from Earth that everything we know about it can be written down on a couple of 3 x 5 inch index cards. But Pluto will come into clearer focus in a few years' time, though, as ...

Pluto's discovery was widely celebrated, especially in the U.S. After all, it was the first planet discovered in the new world, and America needed the win in 1930.

Pluto used to be one little blur in the telescope." Now there are bigger telescopes and more blurs, he said, and there may be 600 planets or there may be eight.

Arizona Gov. Katie Hobbs signed a bill making Pluto the official state planet. It was discovered at an observatory in Arizona, but was downgraded to a dwarf planet in 2006.

In this except from "Space Camp," a special series from NPR science podcast Short Wave, host Regina Barber delves into Pluto's demotion from planet to dwarf planet.

The heart is estimated to be 1,000-miles wide and was first spotted when New Horizons was 5 million miles away. Geology New Horizons has photographed curious regions on Pluto, including an area ...