It might be the number one movie this weekend, but the Gravity is full of crap. Or so says Neil de Grasse Tyson, the famous astrophysicist and Reddit deity.

On Sunday night, in a series of 12 tweets, Tyson explored the “Mysteries of #Gravity,” pointing out that while the premise is realistic, there are many scientific inaccuracies in the film. He asks good questions: why is Sandra Bullock, a medical doctor in the film, servicing the Hubble Space Telescope? And why does Bullock’s hair not float freely on her head in zero gravity scenes?

While he’s not the first person to ask these questions, he’ll certainly get the most attention for doing so.

Here’s the rant in its entirety:

Update: He's added more:

[Image via Getty]