Bloomberg reports that Silicon Valley startup SpinLaunch has raised $40 million for a new approach to launching small satellites. The company remains tight-lipped about exactly how this contraption will work, although its name gives away the basic idea. Rather than using propellants like kerosene and liquid oxygen to ignite a fire under a rocket, SpinLaunch plans to get a rocket spinning in a circle at up to 5,000 miles per […]