Damon plays astronaut Mark Watney in the Ridley Scott film.
The all-star cast includes Jessica Chastain, Kristen Wiig, Kate Mara, Michael Peña, Jeff Daniels, Chiwetel Ejiofor and Donald Glover.
Scott, who has helmed such sci-fi movies as “Alien,” “Blade Runner” and “Prometheus,” is a stickler for details, but has been known to stretch the facts when his movies are reality based.
Scientists roundly criticized “Prometheus” because of a number of inaccuracies and impossibilities in the movie.
The biggest issue raised by the new film is whether earth plants can even grow in Martian soil at all. But the answer is yes!
As it turns out, a major study was conducted in the Netherlands a few years ago on that very question.
It discovered that plants would not only grow, but could thrive in the Martian soil just like here on earth.
But that’s not the biggest problem facing astronaut Mark Watney. The real question is whether he could survive long enough to reap his first harvest.
Tomatoes, for example, take anywhere from 45 to 75 days to ripen, based on the size of the fruit. (Yes, tomatoes are fruits).
Potatoes, a necessary staple because of the starch they provide, take 75 to 120 days to reach maturity. Again, that depends on the variety.
But Damon says early in the trailer that his Mars station is only stocked with enough supplies to last 31 days. He’ll never see his first harvest!
But here’s the catch. The supplies are meant for six people! So that means Waltney could survive for at least 180 days. So Director Scott dodges that bullet.
As it turns out, Damon is planting potatoes, so he should have more than enough time to collect his first harvest.
Meanwhile, NASA launches an international effort to rescue Waltney. His crew has its own rescue plan once they discover he’s alive.
The film, based on a best-selling novel by the same name, hits theaters in October.
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