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Watch the transit of Mercury online or in the sky

Transit of Mercury
A multiple-exposure image from NASA’s Solar Dynamics Observatory shows Mercury’s track across the sun’s disk in 2016. (NASA / GSFC / SDO Image / Genna Duberstein)

The planets will be aligned on Nov. 11 for a rare astronomical event known as the transit of Mercury, and skywatching fans are sure to see it even if the skies are cloudy, thanks to this little thing called the internet.

For folks in Western Washington, watching the action online will be the best bet when the tiny black dot of Mercury’s disk crosses the sun. Mercury will make its first contact at 4:35 a.m. PT, when the skies will still be dark in Seattle. It’ll be another two and a half hours before the sun creeps over the Cascades. By that time, the transit will be almost half-done.

Get the full story on GeekWire.

By Alan Boyle

Mastermind of Cosmic Log, contributing editor at GeekWire, author of "The Case for Pluto: How a Little Planet Made a Big Difference," president of the Council for the Advancement of Science Writing. Check out "About Alan Boyle" for more fun facts.

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