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What is a region in space where no radiation is emitted? |
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What is the space between the Earth and the Moon? |
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What is a grouping of stars, named after mythical figures and animals? |
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What is an enormous collection of stars arranged in a particular shape? |
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What is measured from the center of the Sun to the orbit of its outermost planet? |
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What is the distance from one solar system to another? |
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What are small gravity levels or low gravity? |
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What is a giant cloud of dust and gas? |
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What is a pulsating star that flashes electromagnetic emissions in a set pattern |
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What is a region beyond the Earth's atmospheyere where there is very little molecular activity? |
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What is a body of hot gases? |
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What contains everything; stars, planets, galaxies, animals, plants and humans? |
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What are radiation belts filled with charged particles? |
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What is a part of the universe beyond the immediate influence of Earth and its atmosphere? |
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True of False: Space can be accurately described as a void or a vacuum. |
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At what altitude does the Air Force and NASA define as the beginning of space? |
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At what altitude does an object orbiting Earth need to be to stay in orbit? |
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What are the four main characteristics of space? |
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Definition
1. lack of oxygen 2. lower pressure than on Earth 3. temperature is generally at -273C 4. low or microgravity |
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What is temperature based on? |
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What is absolute zero in celcius and fahrenheit? |
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Definition
-273 degrees Celsius and -459 degrees Fahrenheit |
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What does the prefix micro mean? |
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Definition
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What is the net effect on an unprotected human body if exposed to near zero pressure? |
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Definition
swelling, tissue damage, and a deprivation of oxygen to the brain that would result in unconsciousness in less than 15 seconds. |
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What is the point at which all molecules stop moving or have the least abount of energy? |
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What is the average temperature in space in Kelvin, Celcius and Fahrenheit? |
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What is a form of electromagnetic radiation filling the universe? |
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Definition
Cosmic microwave background radiation |
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What might the tempertature be for an object in Earth's orbit if it is in sunlight areas? |
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What might the temperature be for objects in Earth's orbit that are in Earth's shadow? |
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What state are astronauts in which cause them to experience a feeling weightlessness? |
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What are the occupants of cislunar space? |
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Definition
1. man-made satellites and astronauts 2. photons 3. atoms 4. electrons 5. protons 6. cosmic rays 7. molecules 8. neutrons 9. solarwind 10. meteoroids 11. x-rays |
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What is the mean distance from the Earth to the Moon? |
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What contains protons, electrons and magnetic lines of force? |
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Who said the sky is very, very stark. The sky is pitch black and the Moon is quite light. The contrast between the sky and the Moon is a vivid dark line? |
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Definition
Astronaut William Anders (Apollo 8) |
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How many known planets are in our solar system. |
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What are the three main shapes of galaxies? |
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Definition
1. elliptical 2. spiral 3. irregular |
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Which galaxy shape is oval shaped? |
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Which galaxy shape has arms spiraling outward from a center? |
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Which galaxy shape has no particular shape? |
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Who discovered the Van Allen Radiation Belt? |
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When were the Van Allen Radiation Belts discovered? |
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What is energy or matter moving through space? |
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What four types of electromagnetic radiation are produced by the sun? |
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Definition
1. sunlight 2. ultraviolet radiation 3. infrared radiation 4. gamma radiation |
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What type of radiation is actually the nuclei of atoms such as hydrogen, helium, iron, and others which travel through space at hundreds of thousands of kilometers per second? |
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Definition
cosmic radiation also known as cosmic rays |
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What part of the Van Allen Belts contain high-energy protons carrying energies of about 100 million volts, and electrons with energies of about 1 to 3 million volts? |
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What part of the Van Allen Belts consists of mostly electrons with energies of 5 to 20 million volts? |
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What part of the Van Allen Belts is a hazard to satellites? |
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Definition
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What part of the Van Allen Belt's Outer Belt causes damage to the sensitive circuits of communication satellites? |
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Definition
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Who discovered the Van Allen Radiation Belt? |
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Definition
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When were the Van Allen Radiation Belts discovered? |
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Definition
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What is energy or matter moving through space? |
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Definition
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Term
What four types of electromagnetic radiation are produced by the sun? |
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Definition
1. sunlight 2. ultraviolet radiation 3. infrared radiation 4. gamma radiation |
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Term
What type of radiation is actually the nuclei of atoms such as hydrogen, helium, iron, and others which travel through space at hundreds of thousands of kilometers per second? |
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Definition
cosmic radiation also known as cosmic rays |
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Term
What part of the Van Allen Belts contain high-energy protons carrying energies of about 100 million volts, and electrons with energies of about 1 to 3 million volts? |
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Definition
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What part of the Van Allen Belts consists of mostly electrons with energies of 5 to 20 million volts? |
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Definition
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What part of the Van Allen Belts is a hazard to satellites? |
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Definition
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What part of the Van Allen Belt's Outer Belt causes damage to the sensitive circuits of communication satellites? |
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Definition
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Who discovered the Van Allen Radiation Belt? |
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Definition
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When were the Van Allen Radiation belts discovered? |
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What agency launched the satellite that was used to discover the Van Allen Radiation Belts? |
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What part of the Van Allen Radiation Belts are found between 600 and 3,000 miles (1,000 and 5,000 km) above the Earth's surface? |
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How much energy do the protons found in the inner belt of the Van Allen Radiation Belts carry? |
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Definition
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How much energy do the protons found in the inner belt of the Van Allen Radiation Belts carry? |
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Definition
about 1 to 3 million volts |
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What part of the Van Allen Radiation Belts are found between 9,000 and 15,000 miles (16,000 and 24,000 km) above the surface of the Earth? |
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How much energy do the electron carry in the Outer Belt of the Van Allen Radiation Belts? |
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What are the three theories about the origins of the particles found in the Van Allen Belts? |
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Definition
1. the Sun 2. cosmic rays from outside the solar system trapped by Earth's magnetic field 3. atoms and nuclei from Earth's atmosphere |
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Which part of the Van Allen Radiation Belts is most hazardous to astronauts? |
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Definition
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Which part of the Van Allen Radiation Belts is most hazardous to communication satellites? |
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Definition
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How the radiation belts damage the sensitive circuitry of satellites? |
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Definition
high energy particles pass through the skin of the satellite? |
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Term
What was the cost of satellites lost during the sunspot cycle which began in 1996? |
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What is the term used to describe the changing conditions in the flows of matter and energy in space |
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What are severe conditions can significantly change the way a satellite operates or the health of an astronaut working and living in space called? |
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Definition
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What happens if a high energy particle collides with one of the pixel elements in a satellite's star tracking camera? |
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Definition
creates a false star which confuses satellite into thinking it is not pointed in the right direction. |
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