Finding another way to propel a rocket into space that does not rely on fuel may allow for simpler and less expensive rockets. California-based SpinLaunch is developing a novel ground-based system to launch rockets into orbit using kinetic energy rather than fuel.
Read MoreSome pretty cool stuff is going on out there… MIT ‘microthrusters’ are the size of a penny, could reposition tiny satellites Bus-sized satellites require massive engines for even the slightest…
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