'Ring of fire' solar eclipse 2020: Here's how it works (and what to expect)
A "ring of fire" solar eclipse, the only annular eclipse of 2020, will wow skywatchers in the Eastern Hemisphere. Here's how it works.
from Space.com https://ift.tt/2YfIg9g
from Space.com https://ift.tt/2YfIg9g
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