Mercury transits are relatively rare — the next one isn't until 2032! Watch Mercury make its trek across the Sun today at https://t.co/5OFdcyOFJ8 🛰⚫️☀️ pic.twitter.com/5dd2pNna2M
— NASA Sun & Space (@NASASun) November 11, 2019
via Twitter https://twitter.com/NASASun
November 11, 2019 at 07:17PM
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