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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