'Gravity' made $55.6 million it's opening weekend.

A lot of people like 'Gravity'. However, at least one astrophysicist finds it unbelievable.

Neil deGrasse Tyson often comments on science in pop culture.

On October 6, Tyson went to Twitter to point out some scientific issues with the movie 'Gravity'.

Was Tyson helpfully educating movie fans?  Or just ruining it for everyone?

You be the judge.

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