High-Altitude Clouds

Naiad and Thalassa race around the ice giant in odd orbits seemingly to avoid each other.

On Nov. 12, 2019, NASA’s Parker Solar Probe team released scientific data collected during the spacecraft’s first two solar orbits to the general public.

In a fitting tribute to the farthest flyby ever conducted by spacecraft, the Kuiper Belt object 2014 MU69 has been officially named Arrokoth, a Native American term meaning “sky” in the Powhatan/Algonquian language.

A new paper identifies a ring of minerals at the rover's landing site that are ideal for fossilizing microbial life.

Scientists have found that oxygen in the air above Gale Crater on Mars behaves in a way that, so far, cannot be explained through any known chemical processes.

From our perspective on Earth, Mercury looked like a tiny black dot gliding across the Sun’s face.This only happens about 13 times a century.