Eventually, while researching, you'll learn something you didn't want to know. Some fact that ruins a plotline you had in mind. The good news is that sometimes, learning all the facts can make for a much more interesting story than you originally had in mind.

The reason space missions need artificial gravity is clear: humans simply did not evolve to live in zero gravity.

Designing a station with artificial gravity would undoubtedly be a daunting task. Space agencies would have to re-examine many reliable technologies under the light of the new forces these tools would have to endure. Space flight would have to take several steps back before moving forward again.

If someone offered me a free trip to the International Space Station, I would decline. I like Earth. I like the internet. I like Diet Coke. I have cats. I write about brave people - I'm not one of them.

I've learned that I've just barely scratched the surface of knowledge of the profession, and I have deep envy of and appreciation for filmmakers who really, truly understand the physics, the design of filmmaking. They can do story and color and composition and geometry and math and science all at once.

In its famous paradox, the equation of money and excrement, psychoanalysis becomes the first science to state what common sense and the poets have long known - that the essence of money is in its absolute worthlessness.

While girls average a healthy five hours a week on video games, boys average 13. The problem? The brain chemistry of video games stimulates feel-good dopamine that builds motivation to win in a fantasy while starving the parts of the brain focused on real-world motivation.

The genre of science fiction is a fun house, an amusement park ride, but it's also a problem. The question that's always being indirectly asked is this: 'Just who do we think we are and, further, who do we want to be?'