shockwave

Mars: Perseverance rover measures speed of sound on Mars for the first time

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Using a laser to strike rocks and a built-in microphone, NASA’s Perseverance rover has measured changes in the speed of sound on Mars due to temperature affecting the atmosphere Space 9 March 2022 By Alex Wilkins An illustration of NASA’s Perseverance rover NASA/JPL-Caltech The speed of sound on Mars has been measured for the first … Read more

Tonga volcano: Massive eruption was a once-in-a-millennium event

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The underwater Hunga Tonga-Hunga Ha’apai eruption has already triggered a tsunami, a sonic boom and thousands of lightning bolts, and could now lead to acid rain Earth 17 January 2022 By Alice Klein Satellite photo of the eruption CIRA/NOAA/Handout via REUTERS The massive explosion of Hunga Tonga-Hunga Ha’apai volcano in Tonga on Saturday was its … Read more