"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 ...

(CNN) — Homemade rockets. Modified AK-47s. Decades-old Soviet machine guns. Cheap, second-hand, and purloined weapons comprised Hamas’ deadly makeshift arsenal that fueled a devastating, multi-pronged ...

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 ...

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A group of U.S. students has smashed a series of world records after launching a "homemade" rocket farther and faster into space than any other amateur rocket. The student-made missile soared 90,000 ...