| | November 3 Giant Geode! Plus … November Planets | | | |
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| | A researcher stands inside the Pulpí geode, one of the largest documented geodes in the world, located at a depth of about 150 feet (50 meters) in a former silver mine in southeast Spain. Image via Hector Garrido. | | |
| Whoa! Check out this giant geode | | Scientists recently studied the formation of the huge crystals inside the giant geode of Pulpí, located deep in a Spanish mine. They found that temperature fluctuations - maybe from climate or maybe from geothermal systems - amplified a natural process that grew the crystals, ripening them over thousands of years and making them literally crystal clear. Read more. | | | November guide to the bright planets | | Saturn, Jupiter and Venus make a line after sunset. Mars rises in the east, shortly before the sun. The 2 brightest planets - Jupiter and Venus - will meet up for conjunction on November 24. Telescopic viewers using protective filters will see Mercury transit the sun on November 11. Read more. | | | Year's earliest solar noon is today | | November 3 brings the earliest noon - or midday - of the year. Click here to learn what that means. Earliest solar noon is a harbinger of 2019’s earliest Northern Hemisphere sunset - and earliest Southern Hemisphere sunrise - happening before the December solstice. Read more. | | | | | | |
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| | | Watch for Taurid fireballs! | Skywatchers are still remembering the Taurid fireballs they saw in 2015. The Taurids appear to have a 7-year cycle of bright fireballs - which are just bright shooting stars, or meteors - and 2015 was apparently a peak year! Read more and see fireball photos from 2015. And what about 2019? We haven't heard of too many fireball-sightings from the Taurids this year. But you never know. | | | | |
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| | Leaf season | View at EarthSky Community Photos. | Beautiful drone picture of Fort Mountain State Park in northwest Georgia, from our friend Scott Kuhn. Thanks, Scott! | | |