"Gravity" busted a bunch of box office records this weekend.

Astrophysicist Neil DeGrasse Tyson is not impressed.

He's Tweeting all the scientific inaccuracies he spotted in the film. 

Some seem consequential.

Others...less so.

Mysteries of #Gravity: Why Bullock, a medical Doctor, is servicing the Hubble Space Telescope.

— Neil deGrasse Tyson (@neiltyson) October 6, 2013

Mysteries of #Gravity: When Clooney releases Bullock's tether, he drifts away. In zero-G a single tug brings them together.

— Neil deGrasse Tyson (@neiltyson) October 6, 2013

Mysteries of #Gravity: Why Bullock's hair, in otherwise convincing zero-G scenes, did not float freely on her head.

— Neil deGrasse Tyson (@neiltyson) October 6, 2013

Mysteries of #Gravity: Astronaut Clooney informs medical doctor Bullock what happens medically during oxygen depravation.

— Neil deGrasse Tyson (@neiltyson) October 6, 2013

Mysteries of #Gravity: Nearly all satellites orbit Earth west to east yet all satellite debris portrayed orbited east to west

— Neil deGrasse Tyson (@neiltyson) October 6, 2013

Mysteries of #Gravity: Satellite communications were disrupted at 230 mi up, but communications satellites orbit 100x higher.

— Neil deGrasse Tyson (@neiltyson) October 6, 2013

And last but not least 

Mysteries of #Gravity: Why we enjoy a SciFi film set in make-believe space more than we enjoy actual people set in real space

— Neil deGrasse Tyson (@neiltyson) October 6, 2013