7 Science Facts That Ruin Your Favourite Movies (But 2 That Make It All Better)

6. Sunshine: The Sun Would Actually Get Hotter

We'll skirt around the more glaring flaws in the movie - such as how in the hell a bomb could reignite the actual sun, even if it is the size of Manhattan - and instead focus on a low key problem at the heart of the premise for a moment. Namely, that should the sun begin to "die", it would get hotter and brighter, not colder and dimmer.

Stars shine because their enormous gravity fuses hydrogen atoms into helium and sometimes other heavier elements. Once the hydrogen begins to run out, the star will begin to collapse under its own weight. Although there is less hydrogen to produce energy, the collapse of the helium core takes over with a vengeance, with the heihtening pressure kicking out increased heat and light.

It would still be pretty bad news for mankind, as the sun expands, fusion at its core accelerates, and the Earth becomes an arid, sweltering hellscape.

Also, side note: why exactly would you make this a manned mission? Good one NASA.