Answers created by Nausherwan B.

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• If the Sun is growing bigger wouldn't that be a cause for global warming?
  
• Is there any possible way that people can live in other galaxies?
  
• Galaxies are classed according to what?
  
• Why do astronomers believe Jupiter's Red Spot is a hurricane?
  
• Is there an opposite to a black hole?
  
• How do stars form and how can they die?
  
• Which galaxy is closest to us?
  
• What is convection, conduction and radiation and how do these work in space?
  
• Due to the scale of the universe, when we observe a star in the night sky, we are seeing it?
  
• Why might people continue to pursue space exploration in the future?
  
• How long do massive stars last?
  
• Aside from the Milky Way, what are the most studied galaxies in the universe? Why are they focused on over other galaxies?
  
• Why do some quasars have redshifts greater than 1?
  
• How does a black hole form from a massive star?
  
• Why is the universe transparent?
  
• What are the theories about how life was formed on earth?
  
• What is Pluto's largest moon?
  
• What are three types of convergent boundaries?
  
• What do massive stars become?
  
• Why do the gas giants have more moons than the terrestrial planets?
  
• How many galaxies in the universe can the Hubble Space Telescope observe?
  
• Did life originally begin in the ocean?
  
• What created earth's atmosphere?
  
• How do astronomers know our universe is expanding?
  
• How does gravity affect our galaxy?
  
• What are Milankovitch cycles?
  
• What proof do scientists have that the universe is expanding?
  
• How does mass affect a star life cycle?
  
• Will the universe keep on expanding forever or is there enough gravity to slow down the expansion?
  
• What are quasars and blazars?
  
• Why is the earth made of water?
  
• What prevents the sun from pulling the planets into it?
  
• Does time stop as you approach a black hole?
  
• What are black dwarfs?
  
• What will happen when the universe stops expanding?
  
• What is the Milky Way?
  
• How far is the nearest black hole to earth and does it pose a threat?
  
• How long did it take for the earth to form into a hospitable place for life?
  
• What keeps Mercury from being pulled into the sun?
  
• Why is there no life on the sun and other stars?
  
• How long to quasars last?
  
• Question #aaca0
  
• Do quasars emit energy?
  
• Besides earth, what is the next most inhabitable planet or moon in our solar system?
  
• What would it feel like to be inside a black hole?
  
• Do different colors of light travel at different speeds?
  
• Why is earth considered to be in the Goldilocks Zone?
  
• Proxima Centauri is 4.3 light-years away from the Sun. How many kilometers away is it from the Sun?
  
• Can a solar system be destroyed?
  
• Question #55f07
  
• If the sun were growing bigger would that account for global warming?
  
• How many quasars are in the Milky Way?
  
• If a supernova happens when a giant star uses up its fuel, how are new stars created? If all the hydrogen is gone how would a new star emerge from the debris of a star that has used all its fuel?
  
• Why does Saturn have rings?
  
• How big are dwarf stars? What is their life span? Their brightness?
  
• If the entire history of the earth was relative to 1 day, how long would humans been around on earth?
  
• Do all planets have a magnetic field?
  
• What are theories about matter that goes into a black hole?
  
• What allowed for the earth to have layers during its formation?
  
• How do astronomer determine the temperature of a black dwarf star?
  
• Do stars exist outside of galaxies?
  
• If a star is moving away from the earth, toward which color will its visible light be shifted?
  
• If you doubled your distance from the center of the solar system, what would happen to your orbital speed?
  
• Will intergalactic space travel and space habitation be possible within the next 1000 years?
  
• When we look at a picture of a galaxy, how is it possible that we see a disk form or a near perfect circle? Considering how long light takes to travel between the galaxy and the earth, shouldn't the images be more distorted?
  
• What is the biggest planet in our galaxy?
  
• What is the strongest force in the universe?
  
• How many planets are in our galaxy?
  
• What is the lifespan of red giant?
  
• What is inside a black hole?
  
• Is Mars moving closer or farther away from the sun? If it is moving closer, is it possible that life could spontaneously develop?
  
• Which is the nearest star to earth after sun?
  
• Which stars are the brightest?
  
• Why was the discovery of cosmic background radiation important?
  
• How many miles is the earth's orbit around the sun?
  
• Why does Mars have a thinner atmosphere and cooler temperature than Earth?
  
• How big in light years is the universe?
  
• How is the age of the Earth estimated?
  
• How far away is Venus from the sun in miles?
  
• How does accretion disk differ from a galaxy?
  
• How and when do scientists use astronomical units versus a light-year?
  
• Is Mars bigger than Earth? How do we know?
  
• How can there be no time before the Big Bang?
  
• What is the largest known galaxy and how many stars does it have? How far away is it?
  
• What is the possibility that there is life in the galaxy Andromeda?
  
• What is the closest planet in our solar system with an earth-like composition?
  
• How does the observable universe differ from the universe?
  
• What is the farthest photo taken of earth?
  
• How many light years in diameter is the solar system?
  
• Is the American flag and moon rover visible from Earth with a telescope?
  
• What is the difference between an AU, light year, and parsec? When should each be used?
  
• Why is fuel needed to change the speed or direction of a probe in space?
  
• How does a star become a black dwarf?
  
• How does earth's orbit affect temperature?
  
• How fast does the sun move around the galaxy center?
  
• What is a supernova? What do supernovas produce?
  
• What are dwarf stars?
  
• How many light years away is the nearest star?
  
• What is the main difference in the light we see from the planets and the light we see from the stars?
  
• What are the main differences between stellar black holes and supermassive black holes?
  
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