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SpaceX will make a fourth attempt to land a Falcon 9 booster on an automated barge in the ocean following the launch of the SES-9 satellite currently planned for Wednesday of this week. Luxembourg-based SES is the owner of the satellite. The latest version of the falcon 9 booster will carry the satellite to an orbit of more than 22,000 miles above the equator. A major step towards electric powered air travel was achieved earlier this month with the power-up of the world's most powerful hybrid electric powertrain for aviation in a project led by Pipistrel. The 268 horsepower, ‘Propulsor,’ developed during the project HYPSTAIR, can run in three