Loop I Bubble
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What links here
Local Bubble
Gerrit Verschuur
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Contact (1997 American film)
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Orders of magnitude (volume)
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Outer space
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Interstellar medium
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X-ray astronomy
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Supernova remnant
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Magnetic sail
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List of nearest stars
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Solar System
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Pliocene
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Corona Australis
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Aldebaran
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Alpha Centauri
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Atom
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