NASA has discovered a mysterious interstellar comet entering our solar system. Learn what this strange visitor is and how scientists are tracking it now.

Astronomers are tracking a newly spotted comet hailing from parts unknown, only the third time such an interstellar object ...

The 21 satellites from the Starlink company joined the more than 7,000 that are already in low-Earth orbit. Once deployed and in their orbit, they will provide internet service to many parts of Earth.

Interstellar comets offer the tantalizing opportunity for us to touch something truly otherworldly,” says the European Space ...