It’s almost Independence Day, which means lots of big, bright, sulfury booms. Even if you’re not planning on checking out a full-fledged fireworks display, you can still make your own little rockets ...

"The Blue Marble" is a photograph of the Earth taken on December 7, 1972, by the crew of the Apollo 17 spacecraft en route to the Moon at a distance of about 29,000 kilometers (18,000 mi). Flat earth ...

You know Earth’s main moon. It’s hard to miss right now. But every now and then, our planet’s gravity temporarily captures smaller celestial objects like asteroids and they become little “mini-moons” ...

Model rocketry isn't the cheapest hobby in the world, but it's a lot of fun. As a kid, I built my first rocket from this Estes Space Shuttle kit. It launched fine and then exploded halfway to its ...