Brazil is taking another step forward in the development of a magnetic levitation train (maglev). These futuristic vehicles, which are still rare worldwide, hover a few centimeters above the track, ...

Getting into space is one of the harder tasks to be taken on by humanity. The present cost of inserting a kilogram (2.2 lb) of cargo by rocket into Low Earth Orbit (LEO) is about US$10,000. A manned ...