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Natural radio signal buzzes in Venus’ atmosphere

9 May 2021, 12:00 UTC
Natural radio signal buzzes in Venus’ atmosphere
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Venus has been in the news a lot since last September, when researchers announced the possible detection of phosphine, a possible life sign, in its atmosphere. On May 3, 2021, NASA’s Parker Solar Probe announced another discovery: a never-before-seen natural low-frequency radio signal in the atmosphere of Venus. The probe, designed primarily to study the sun, came close to Venus to use it as a gravity slingshot, needed to propel the probe sunward. Parker Solar Probe was at its closest to Venus yet – only about 500 miles (800 km) above Venus’ surface on July 11, 2020 – when it found the surprising signal.
The researchers published their new peer-reviewed findings on May 3 in AGU’s Geophysical Research Letters.
Glyn Collinson of NASA’s Goddard Space Flight Center and lead author exclaimed:
I was just so excited to have new data from Venus.
The measurements from Parker Solar Probe are the first new direct measurements of Venus’ atmosphere in nearly 30 years. The results also show that the atmosphere undergoes changes during the sun’s 11-year solar cycle, and that it is now quite different from what it was in the past.
Parker Solar Probe captured this stunning view of ...

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