It takes light a single day to travel 16 billion miles. The Voyager 1 probe will need a little longer, just 49 years.

Nothing traveling through space is faster. To put that into perspective: In the time it takes you to blink your eyes, a particle of light travels around the circumference of Earth more than twice. As ...

We live on a planet that seems motionless, yet Earth orbits the Sun at a dizzying speed, and our entire Solar System moves through the galaxy. But how fast exactly are we traveling through ...

My telescope, set up for astrophotography in my light-polluted San Diego backyard, was pointed at a galaxy unfathomably far from Earth. My wife, Cristina, walked up just as the first space photo ...

As just one of all the living creatures on Earth, you're along for the ride as our planet constantly moves in two major ways. This article was originally published at The Conversation. The publication ...