According to NASA, which observes and tracks near-earth objects, no known asteroid or comet poses a significant risk to Earth for more than 100 years. But if a new one were to pop up on the radar, Gorjian said, using rockets to nudge it onto a different course would be a better option than blowing it up.
“Blowing it up generally is a bad idea, because it’s going to split it up into multiple pieces, and many of those pieces will hit,” he said. But “The earlier you know, the easier it is to deflect it.”
“If you know about it earlier enough you can actually fly a rocket that hits it and has this gentle thrust and just slowly nudge it,” Gorjian said.
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Of course, in the movie, the killer asteroid wasn’t spotted until 18 days before impact — which Gorjian called “ridiculous.” And while the mission-control chatter and the procedure around the launches were realistic, launching two manned missions nearly simultaneously would be highly unlikely.
But while the other guests lacerate the movie, Mara Tsudis — a construction engineer with experience working in oil refineries — praises its working-class hero message. “I love when normal people get to save the day,” she said. And unlike Deep Impact, the other death-from-above blockbuster that came out the same year, “Nobody was bored watching this movie,” Gorjian said.
Why train oilworkers to be astronauts when you can just train astronauts to run a drill? Why risk astronauts at all? And who let Buscemi’s favorite stripper into the landing site? Hear Ethan, Riki, Varoujan, and Mara tackle those questions and more in the latest episode of Bad Science — and stick around for a duet between Riki and Ethan.