But there are a lot of obstacles that make baking in space difficult.

First, the oven needs to function on about a tenth of the power an oven here on earth does.

And it's pretty much impossible to preheat the oven, because if it gets hot and then the door is opened, a giant hot air bubble could leave the oven and float into the spacecraft.

"It could just sit there in mid air and the astronauts could basically burn himself if he flies through it," Marcu says.

Which is clearly not ideal..

Quite.