"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 ...

When building a model rocket, it can be fun to get into the maths of it all—calculating the expected performance of your build, and then seeing how it measures up in the real world. To aid in that ...

If you’re building model rockets you want to make sure they fly straight, and most of that is dependent on the stabilizer fins. It has long been a problem come assembly time. How can you make sure ...

The science pros at TKOR build a simple homemade rocket to demonstrate thrust. Automatic registration for US military draft to begin in December Appeals court judges raise questions about severity of ...

Long before model rockets became Randy Boadway’s business, it was his hobby. Now Boadway shares that hobby with hundreds of beginners every year, both through his company, eRockets, and through the ...

See how a homemade pyrotechnic rocket is built using a potassium nitrate and sugar fuel mix. This experiment shows the ...