For more than half a century, a Lonely Planet guidebook has been a backpacking bible, helping travelers find their way even ...

Ah, Earth. We may not think about our planet on a day-to-day basis, but the world we live in is a pretty interesting place. The third rock from the Sun—and to this day, the only one with known ...

Astronomers do not have a photo of Kepler-22b, but they used the so-called 'transit method' to detect it from 640 light-years away. Credit: NASA / Ames / JPL-Caltech illustration In Apple TV’s ...