Cracks in the Musk Empire? Tesla Stumbles as SpaceX Faces New Questions

Pulitzer Prize-winning Wall Street Journal reporter Becky Peterson breaks down Tesla's latest earnings, SpaceX, and what's next for Elon Musk.
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Can NYC Finally Cool Its Subway?
Why is the NYC subway platform so hot? One rider built his own sensor network to find out. We explore the geothermal fix the MTA is piloting right now.
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