Gamma rays are the sort of radiation you should avoid. Want proof? Just remember how the comic strip character "The Hulk" became big, green, and ugly.

Photons are accurately and legitimately described as waves and particles at the same time. They are genuine wavicles.

Some air you inhale was exhaled by Cleopatra.

In the movie, the stars above the ship bear no correspondence to any constellations in a real sky. Worse yet, while the heroine bobs... we are treated to her view of this Hollywood sky-one where the stars on the right half of the scene trace the mirror image of the stars in the left half. How lazy can you get?

Pretending to know everything closes the door to finding out what's really there.

For me, the most fascinating interface is Twitter. I have odd cosmic thoughts every day and I realized I could hold them to myself or share them with people who might be interested.

Everything we do, every thought we've ever had, is produced by the human brain. But exactly how it operates remains one of the biggest unsolved mysteries, and it seems the more we probe its secrets, the more surprises we find.