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| Bright, distant object. Looks like a star but emits radio waves. |
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| Geometrically defined area of space/time where gravity has taken control...allowing nothing to escape. |
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| 100 million light years across |
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| Small star core that spins rapidly, flashing on and off. |
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| Type of Galaxy Milky Way is... |
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| Cluster of millions of stars with no apparent shape |
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| Number of stars in Milky Way |
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| Closest galaxy to the Milky Way |
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| Canis Majoris Dwarf Galaxy |
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| Stars that brighten and dim at a known rate, can be used to calculate distances to stars/galaxies. |
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| List created by an astronomer originally looking for comets of different objects in the sky |
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| size of the observable universe |
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| number of stars in the universe |
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| gas and dust in space that gives off its own light |
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| gas/dust in space that is illuminated by a nearby star |
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| gas/dust in space that does not allow visible light to pass through it |
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| stars typically form in nebula |
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| closest SPIRAL galaxy to earth |
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| point at which not even light can escape a black hole |
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| matter that cannot be seen |
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| this is causing the expansion of the universe |
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| object of burning gas that emits light |
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