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May 9, 2021 New measurements from Parker Solar Probe – the first new direct measurements of Venus’ atmosphere in nearly 30 years – showed an unexpected natural radio signal being emitted by Venus’ ionosphere. The probe made the discovery while using Venus as a “gravity slingshot” to come closer to the sun. ?? 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 r...

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4 MAY 2021 During a close flyby of the planet Venus in July 2020, NASA's Parker Solar Probe detected something odd. As it dipped just 833 kilometers (517 miles) above the Venusian surface, the probe's instruments recorded a low-frequency radio signal - a telltale sign that Parker had skimmed through the ionosphere, a layer of the planet's upper atmosphere.   This was the first time an instrument had been able to record direct in situ measurements of Venus' upper atmosphere in nearly three decades, and the data recorded gives us a new understanding of how Venus changes in response to cyclic...

The natural radio signal is helping scientists study the atmosphere of 'Earth's less hospitable twin,' according to the NASA team responsible for the probe.

The ionosphere of Venus turns out to be a natural source of radio waves