Healthy young man and a woman hiking and enjoying the view from the top of King Creek Ridge, Kananaskis Country, Alberta, Canada on a bright sunny day. Back packing in the Canadian Rockies.
As Stellar Observations Improve, Earth’s History and Future Get Fuzzier
Astronomers have gotten better at tracking the motions of stars just beyond the solar system. But that’s made it harder to predict Earth’s future and reconstruct its past.
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