If you are interested in the colors of planets, you may also want to check out the color of plants on other worlds and the planetsâ true colors. Astronomy Cast has episodes on all of the planets, so start with Mercury and listen to all of them.
No, a human couldn't live without a brain because the brain controls everything in your body, so it tells your heart to beat, feet to move, eyes to blink, mouth to open, teeth to chew. If you don't have your brain to tell your heart to beat, your heart cannot pump blood. So your body really can't live.
The human brain appears to be limited (it is between our ears, and lasts as long as we live). In a distinct period of time there are only so many states the brain could take on in space, and all of these potential states should not be available if the brain is to store information from the past.