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 conventional thinking that humans could not grow new brain cells was based on the lack of scientific evidence: no one would choose to cut open the brain of a living person to prove it. But 30 years ago, a Purdue University neurobiologist, Dr. Joseph Altman, first reported cell birth in the hippocampus of adult rats.