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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 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.

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