BOSTON–(BUSINESS WIRE)–Time is running out to win a once-in-a-lifetime trip to Boston to meet Mark Rober, the former NASA engineer behind the most-watched science channel on YouTube, with more than 18 billion views and 83 million subscribers. Entries for the Museum of Science’s Mark Rober sweepstakes close at 12:00 PM ET on October 13. One winner and a guest will travel to Boston to see Live with Mark Rober on Saturday, October 24, an event that sold out its 500 seats in under two minutes, an