On October 4th 1957, the first artificial satellite – Sputnik 1- was launched into low Earth orbit as a part of Soviet space program.

Have you ever seen pictures of the Amazon rainforest? It's mostly flat, but in the wildest, most remote parts of the Amazon near the Peruvian border, there's a mountain that rises half a kilometer above the flat forest. This mountain,...

Leonardo da Vinci (1452-1519), the world-famous painter and sculptor, was the first to think about and logically design flying machines.The first glider was built in 1893, four centuries later. Ten years later, in 1903, the Wright brothers built the first...