A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...
One of the most notable properties of the giant planets in our solar system—Jupiter, Saturn, Uranus and Neptune—are the ...
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Planet 9 could be hiding at the edge of our solar system
Planet 9 may exist 42 billion miles away, influencing objects in the Kuiper Belt, and could be discovered with modern telescopes within a year.
Due to the lapse in federal government funding, NASA is not updating this website. NASA's Science Mission Directorate (SMD) announces the release of its annual omnibus solicitation for basic and ...
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