10 unusual things researchers launched into space for science -and why: 1. Nickelodeon Green Slime, 2. Tissue Chips, 3. Jellyfish, 4. Salmonella, 5. Tardigrades, 6. Honeybee Colonies, 7. Spiders, 8. Freeze-Dried Mouse Sperm, 9. Medaka, & 10. Bullfrogs.
