psullivan3019
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Over the years, astronomers have found many planetary systems with two or even three stars. However, the planets within the systems typically orbited a single star. Now, researc...Over 4 years ago
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| 340872 | puncheta | 2 points |
| 340875 | Ms. Chung | 2 points |
| 340876 | Paige Sylve | 2 points |
| 340877 | psullivan3019 | 2 points |
| 340878 | Mrs. Moss | 2 points |
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| 340881 | princessjas24 | 2 points |