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- The discovery of cosmic object 2003 UB313 caused much stir in astronomers circles.
Question 1:
The discovery of cosmic object 2003 UB313 caused much stir in astronomers circles. Its discoverers declared 2003 UB313 to be what?
A. The tenth planet in the Solar system
B. A new galaxy
C. A possible black hole near the edge of the Solar system
D. A planetary system with signs of intelligent life
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