It’s a ravioli! It’s a UFO! It’s a moon

NASA on Thursday released pictures of Pan, one of Saturn's many moons, and its distinctive shape is drawing comparisons to flying saucers and stuffed pasta. The images of the moon come courtesy of NASA's Cassini spacecraft, and reveal the UFO-like form of the tiny satellite, which has an average radius of just 8.8 miles.

Watch This: In space, no one can…

Granted, it's not up there with the big questions of the universe, but at least one Canadian student wondered, and he got an answer from an astronaut on the International Space Station.

Blue Jets Swirl Above Thunderstorm in Photo from Space Station

In views from the International Space Station, a mysterious set of electrical discharges shine above a roiling thunderstorm in Earth's upper atmosphere. Andreas Mogensen, a European Space Agency astronaut who flew in 2015, took pictures over thunderstorms to try to see the strange atmospheric features, which are sometimes called red sprites, blue jets, pixies and elves.

NASA: Space Alters Your DNA In Bizarre Ways

Does going into space fundamentally change our biology? It's not a casual question. Human beings evolved to live in a very specific ecological niche, and no matter how tough DNA is , nature never planned for us to sit on a pile of explosives and fling ourselves into an airless void full of rocks and ionizing radiation.