updated: Jul 27 2021, 09:29 ist
David R. Scott was not about to pass by an interesting rock without stopping. It was July 31, 1971, and he and James B. Irwin, his fellow Apollo 15 astronaut, were the first people to drive on the moon. After a six-hour inaugural jaunt in the new lunar rover, the two were heading back to their lander, the Falcon, when Scott made an unscheduled pit stop.
West of a crater called Rhysling, Scott scrambled out of the rover and quickly picked up a black lava rock, full of holes formed by escaping gas. Scott and Irwin had been trained in geology and knew the specimen, a vesicular rock, would be valuable to scientists on Earth. They also knew that if they asked for permission to stop and get it, clock-watching mission managers would say no. So Scott made up a story that they stopped the rover because he was fidgeting with his seat belt. The sample was discovered when the astronauts returned to Earth, and “Seat Belt Rock” became one of the most prized ge
Well, now there is a fog of fire thunder - WiredPRNews com
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Go behind the mission of Apollo 15
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Large wildfires up and down the West Coast are increasingly creating weather patterns that trigger high winds and lightning, according to researchers at the US Naval Research Lab in Washington DC. Pyrocumulonimbus clouds (or pyroCB for short), are thunderstorms that are created over the top of large wildfires. PyroCB’s act like giant chimneys, funneling massive amounts of smoke into thunderstorms, creating the conditions for dangerous and volatile lightning. These clouds are a form of severe weather known as fire weather.
The lightning that appears from the clouds can potentially worsen the wildfires on the ground. There is not enough data on the Bootleg fire to say if this is currently happening, however, early research does give some insight into this possibility.
The science behind the thunderclouds forming over Oregon s Bootleg Fire
Often associated with volcanoes, scientists are now noticing clusters of PyroCbs in wildfires. Here s what to know about these smoke-filled thunderclouds. Author: Sofia Silvia Updated: 7:38 PM PDT July 21, 2021
When thinking about wildfires, we often think about its impact on our land, community and neighbors. But there is something else to consider: the atmosphere.
PyroCbs, short for pyrocumulonimbus clouds, are often referred to as thunderclouds, a type of plume that mixes smoke particles in the upper atmosphere linking to storm elements like lightning or hail. It’s a phenomenon that you might see in a volcanic eruption – and now wildfires.