The hidden driver of the ride-sharing economy

When Greg Buchak was a graduate student at the University of Chicago, Uber and Lyft were just beginning to spread across the country. Since he didn't own a car, he found the ride-sharing apps convenient for short and long ...

Who owns the moon?

The first successful moon landing of a private lander, Odysseus, last week came a month after Japan and six months after India touched down on Earth's natural satellite.

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