For a quarter of a century, humans have continuously occupied the International Space Station. Here's a look at how far we've ...

Scientists have discovered that the far side of the Moon is colder deep within its interior than the side that always faces ...

The comet is such an unusal visitor that Nasa has set up a tracker for people to keep an eye on what its doing. It passed Mars on October 3, and is now on its way towards perihelion (its closest point ...

Despite the Internet and GPS, Travel Graphics International is still finding ways to remain relevant and keep its maps in travelers’ hands.