Propellant

Several experiments have shown that the EMDrive can generate thrust from basically nothing – in apparent violation of Newton’s Laws of Motion. Unfortunately, a German team has now built and tested their own EMDrive, and found that environmental factors may have been responsible for false positives.

Getting into space is an expensive business where every little bit of extra weight can add thousands of dollars to the cost of a mission. A team of researchers at MIT proposes establishing gas stations in space as a possible way to help cut the cost of future missions to the Moon.