This image of Jupiter’s southern hemisphere was captured by NASA’s Juno spacecraft as it performed a close flyby of the gas giant planet on Dec. 16.

This infrared color image shows a special reflection of the hydrocarbon lake Kivu Lacus on Saturn's moon Titan. Kivu Lacus is the smallest lake on Titan - about 77.5 km wide, located very close to the north pole of Titan.This...

Due to the lack of atmosphere, water, and plates like the Earth's crust, craters on the moon could remain unchanged for billions of years, meaning you can still see craters that are up to two billion years old. The large...

The main attraction of comets is their shiny long tail. Most of a comet will be frozen ice. This frozen part, about a kilometer in size, is called the nucleus. The nucleus contains ice, dust, and frozen gases. As the...