The Vatican is celebrating the big-bang theory to honor the late Jesuit cosmologist who came up with the concept...

China has launched its first unmanned cargo spacecraft on a mission to dock with the country's space station...

Another "Great Spot" has been found at Jupiter, this one cold and high above the giant planet...

Jupiter is extra close and extra bright this week, and that means some amazing, new close-ups...

NASA's New Horizons spacecraft is now halfway between Pluto and its next, smaller stop...

Correction: SpaceX Launch story...

An agreement has been signed for a giant telescope to be built in Spain's Canary Islands if it cannot be put atop a Hawaii mountain...

If human beings finally reach Mars, they may find themselves depending on the humble, if hardy potato...

State media say China is developing an advanced new spaceship capable of both flying in low-Earth orbit and landing on the moon...

Fast-moving story on Attorney General Jeff Sessions is textbook example of how stories take different shapes on different outlets in today's media world...