The dangers of traveling in low Earth orbit aboard a spacecraft include radiation, cosmic rays and debris; the commercial prospects of taking private citizens into orbit and aboard the International Space Station.
Discovering the most bizarre, mysterious and exotic things in the universe, including alcohol clouds floating in space, mini-black holes, pulsar planets and dark matter.
Cosmic events that have had helpful and harmful effects on life on Earth; the beauty of rainbows and the Aurora Borealis; the dangers of UV radiation and cosmic rays; photosynthesis; meteor showers.
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