Mini Mercury Skips Across Sun's Vast Glare In Rare Transit
Mini Mercury skipped across the vast, glaring face of the sun Monday in a rare celestial transit.
Stargazers used solar-filtered binoculars and telescopes to spot Mercury — a tiny black dot — as it passed directly between Earth and the sun on Monday.
The eastern U.S. and Canada got the whole 5 ½-hour show, weather permitting, along with Central and South America. The rest of the world, except for Asia and Australia, got just a sampling.
Mercury is the solar system's smallest, innermost planet. The next transit isn't until 2032, and North America won't get another shot until 2049.
In Maryland, clouds prevented NASA solar astrophysicist Alex Young from getting a clear peek. Live coverage was provided by observatories including NASA's orbiting Solar Dynamics Observatory.
"It's a bummer, but the whole event was still great," Young wrote in an email. "Both getting to see it from space and sharing it with people all over the country and world."
At Cape Canaveral, space buffs got a two-for-one. As Mercury's silhouette graced the morning sun, SpaceX launched 60 small satellites for global internet service, part of the company's growing Starlink constellation in orbit.
Happening Now: The planet Mercury passes directly in front of the Sun! ✨
This front-row seat view is from our @NASASun-observing satellite that keeps a constant eye on the Sun from its position in orbit around Earth. See more #MercuryTransit views: https://t.co/rNS6qiAVRE pic.twitter.com/tkMrTTUgu2— NASA (@NASA) November 11, 2019
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