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1. What is the simplest way I could get to fly into space?
   
2. What do spacecraft and shooting stars have in common?
   
3. What are the top 10 most-used acronyms in the Thermal Protection Materials and Systems Branch?
   
4. What special roles does ozone play as the Earth's TPS and why is it important?
   
5. What planets have humans sent probes and landers to?
   
6. How many moons does Saturn have?
   
7. What three planets have more than 20 moons each?
   

1. What is the simplest way I could get to fly into space?
   Be a healthy billionaire!
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2. What do spacecraft and shooting stars have in common?
   They both heat up because of friction with the atmosphere. The shooting star melts, vaporizes and glows from the heat, while the spacecraft is insulated by its thermal protection system, which enables it to survive.
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3. What are the top 10 most-used acronyms in the Thermal Protection Materials and Systems Branch?
   10. TRL Technical Readiness Level: Used to define the level of development of a material/system. 1-9 TRL level is where it is a concept and 9 is flight-proven
   9. UHTC Ultra High Temperature Ceramic: A class of materials being evaluated for sharp vehicles with high heating
   8. PICA Phenolic Impregnated Carbon Ablator: An ablator developed at NASA Ames Research Center
   7. SIRCA Silicone Impregnated Refractory Ceramic Ablator: An ablator developed at NASA Ames Research Center
   6. SIP Strain Isolation Pad: A felt-like material used between the Space Shuttle Orbiter tile and the Aluminum structure.
   5. RCG Reaction-Cured Glass: The original black coating used on the Space Shuttle Orbiter tile.
   4. AETB Alumina-Enhanced Thermal Barrier: A Shuttle Orbiter tile that has a higher-temperature capability than the Original tile, LI-900
   3. TUFI Toughened Unipiece Fibrous Insulation: An advanced black surface treatment that replaces RCG on easily damaged areas on the Orbiter.
   2. RTV Room Temperature Vulcanizing: A class of silicone adhesives used at high temperature. RTV560 is used to bond Shuttle tile to the SIP and SIP to the aluminum structure and is rated for Temperatures from approximately 40 to 500 degrees F.
   1. TPS Thermal Protection System: A material system used to protect the structure of a spaceship during entry into an atmosphere.
   
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4. What special roles does ozone play as the Earth's TPS and why is it important?
   It absorbs UV radiation. Exposure to too much UV radiation can damage DNA and cause problems such as cataracts and skin cancer. Read more at Beyond Discovery.org
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5. What planets have humans sent probes and landers to?
   Landers were sent to Mars and Venus, and probes were sent to Mars, Venus and Jupiter.
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6. How many moons does Saturn have?
   30
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7. What three planets have more than 20 moons each?
   Saturn has 30, Jupiter has 28, and Uranus has 21.
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