Elon Musk took on another role, becoming Trump's efficiency boss. Here's the full list of his jobs.
The world's wealthiest man is the CEO of Tesla and SpaceX, and he has a number of other roles across his many companies.
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NASA Awards Contracts To Develop Sustainable Concepts For 2050 Airliners
Under the Advanced Aircraft Concepts for Environmental Sustainability (AACES) 2050 project, Phase 1 contracts totaling $11.5 ...