| 31. | So the Americans might as well be in another solar system.
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| 32. | Solar eclipses have played important roles in the history of astronomy.
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| 33. | To be sure, solar systems have been available for decades.
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| 34. | The flood of solar energy causes the temperature to rise abruptly.
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| 35. | Astronomers have found evidence of another planet outside the solar system.
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| 36. | During solar tempests, the aurora grows stronger and expands southward.
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| 37. | Presolar grains are not floating around the solar system by themselves.
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| 38. | That is more power than can be produced by solar panels.
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| 39. | Unlike many thunderstorms, these were not energized by solar heating.
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| 40. | Real-time images from NASA's Solar and Heliospheric Observatory
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