Scientists theorize the exoplanet known as LHS 1140 could resemble a snowball planet, with liquid water on the side that always faces the star it orbits. It lies in the so-called “Goldilocks” zone ...
This March 5, 2020 photo made availalble by NASA shows the main mirror assembly of the James Webb Space Telescope during testing at a Northrop Grumman facility in Redondo Beach, Calif. (Chris ...
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