SpaceX Keeps Aborting Liftoffs Because Rocket Fuel Is Tricky
SpaceX is, depending on how you count, on its fourth or fifth attempt to launch the SES-9 satellite. The first two launches both got scrubbed because of the fickleness of superchilled liquid oxygen, which SpaceX is betting will give its rockets an edge. Except when it comes to reliable launch schedules, it seems.

March 2, 2016 at 06:32PM
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