Surprise and uncertainty
Until just recently, a solar eclipse wasn’t a tourist event.
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Contemplate the incredible vastness of space with this visualization of the size of our Milky Way galaxy.Credit: NASA/JPL-Caltech pic.twitter.com/tS49JhthvH— Wonder of Science (@wonderofscience) May 9, 2021
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Scientists Find Hints Of A Giant, Hidden Planet In Our Solar System : The Two-Way : NPR
Something very big, out beyond Neptune, is warping the orbits of small, icy objects circling our sun. Astronomers haven't seen it yet, but say the culprit could be a planet with 10 times Earth's mass.