How does a star affect the makeup of its planets? And what does this mean for the habitability of distant worlds? Carnegie's ...

Two separate research teams have observed a previously unseen microlensing event, confirming the existence of a particular ...

Far out in the Saturn system, a small world refuses to behave. Iapetus spins in a way that should not be so stable, wears a ...

Astronomers have spotted a Saturn-sized world drifting through a region of space that theory once said should be almost empty ...