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| | Scientists listen to ocean bubbles | | A research team recorded the sound of methane bubbles seeping from the seafloor off the Oregon coast, with the aim of using acoustics to identify – and perhaps quantify – this greenhouse gas. | | | | Check out these mammatus clouds | | Mammatus clouds can appear ominous. But, in a way that's so common in nature, their dangerous aspect goes hand in hand with a magnificent beauty. | | | | | |
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| | | Check out these mammatus clouds | Stephanie Tilden Dorr in Wichita, Kansas, caught these clouds on June 26, 2018. She wrote: "Mammatus clouds appearing exactly one hour after a hailstorm passed over. Twenty-five years in Kansas and I’ve only seen mammatus clouds this vivid one other time, years ago. So exciting!" | | | | |
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| | How do fireworks get their colors? | A fireworks display in EarthSky's home town – Austin, Texas. Photo by our friend Sergio Garcia Rill. | | |