Almost 10 years ago, a NASA spacecraft was able to take several photos of Pluto, known for decades as a planet before it was ...

Although still far from the high-resolution images we enjoy today, these enhanced maps gave astronomers a better understanding of the complexity of Pluto’s surface. “These results and the maps ...

Pluto's surface, fitting for a world whose surface shivers at a cryogenic -364 F (-220 C), is frozen solid. But beneath that nitrogen ice may lie a subsurface ocean of liquid water. A recent study ...

In July, NASA's New Horizons spacecraft took us to Pluto for the first time. The photos the craft sent back so far have astounded researchers. New Horizons principal investigator Alan Stern says ...

Pluto is too far away from Earth to be seen with the naked eye. If you stood on Pluto's surface, the Sun would merely appear to be a very bright star. Although previous images showed that ...

Pluto isn't the only place in our solar system with dunes or ice or sand. Earth, obviously, has dunes of sand all across its surface, and Saturn's huge moon Titan plays host to dunes of methane ...

The relative quantities of volatile gases like methane and ethane can reveal key details about distant Kuiper Belt objects.

Convection processes beneath Venus' scorched surface may help explain the planet's many volcanoes, a new study reports.

Venus, however, is a different story. Its crust is thicker—anywhere from 30 to 90 kilometers—and its surface is extremely hot ...

When NASA's New Horizons probe flew past Pluto in July 2015, the images it returned astonished scientists. Not only was the surface more varied than anyone had predicted, but the photographs also ...

Venus may be far more geologically alive than anyone expected. New research suggests its outer crust could be churning with ...