Pallas, our solar system’s third largest and wholly unexplored asteroid, is the target for a potential SmallSat NASA flyby mission for possible launch in 2022. This remnant protoplanet, in fact, ...

Pallas is in the gray area between a small asteroid and a planet, researchers report. Pallas lies in the main asteroid belt between the orbits of Jupiter and Mars and is about the size of Arizona.

Astronomers have taken stunning new images of a golf ball-shaped asteroid called Pallas zipping through the asteroid belt. The mottled celestial body has the most cratered surface in the solar system, ...