A six-foot, six-ton asteroid passed over northeastern Ohio on March 17, bringing the possibility of fragmented pieces scattered across a wide area.

For decades, astronomers have struggled to differentiate giant planets from brown dwarfs, a class of objects more massive ...

A massive crater on asteroid Psyche may hold the key to whether it’s a lost planet’s core or something more complex. New simulations suggest NASA’s upcoming mission could finally solve the mystery.

My fixation on a small, desolate locale in the heart of the Sahara Desert started with a single line buried in a 630-page ...