Countdowns

From "Star Wars" film sets to baboons in Saudi Arabia, here's how to experience the "eclipse of the century" in style on Aug. 2, 2027.

Lets take a trip through time.

Celebrate International Dark Sky Week by tracking down 10 astronomy targets.

Reference The International Dark-Sky Association (IDA) is working to preserve the night sky. Here's a look at its 21 certified dark sky reserves around the world.

Explore some of the best pranks carried out in space. From rogue gorillas to smuggled sandwiches, we discover the lighter side of space exploration.

From fiery 'blood moons' to ancient legends, discover the surprising science and history behind lunar eclipses.

Earth is home to some truly bizarre and breathtaking landscapes — here are 20 that look straight out of an alien world.

The Avengers, the X-Men, and many more Marvel superheroes have assembled over the years in video games. These are the best Marvel games so far.

Here we debunk some of the most common and enduring space conspiracies.

The milestones, heartbreaks, and discoveries that shaped NASA's 30-year shuttle program.