Illustrator Andrew Kolb was listening to David Bowie's "Space Oddity" when he realized the imagery would make a great children's book. Well, you know - if your kids are ready to deal with the tragedy of an astronaut dying alone in space. The book isn't available in hard copy (yet), but you can get the PDF for free.
Link via Laughing Squid
For many years children have grown up with this stuff. Does not seem to have done them too much harm.
This however is a bit more worrisome imo: An average American child will see 200,000 violent acts and 16,000 murders on TV by age 18.