The naturally occurring signal was captured by Parker’s solar probe during the planet’s flight, which took the first direct measurement of Venus’ atmosphere in nearly 30 years.
NASA says the spacecraft traveled 517 miles from the surface of the rocky planet during the flight, where it picked up a radio signal.
“I was very excited to receive new data from Venus,” said Kline Collinson, an astronomer at NASA’s Goddard Space Aviation Center.
NASA says the flying plane actually happened last July, but they are now only releasing an analysis of the data.
This is the first time new measurements of Venus have been taken since 1992.
And experts say the planet’s upper atmosphere was thinner than measured the previous year.
NASA has now released a study that shows that the planet’s upper atmosphere undergoes “chaotic changes” during an 11-year solar cycle.
Scientists say they are like Venus Land, At the upper edge of its atmosphere contains an electrically charged gas called the ionosphere, which emits radio waves that are naturally detectable by instruments.
Venus and Earth are twin planets, which are rocky and similar in size and structure.
But unlike Earth, Venus has a toxic atmosphere and a temperature of 864 degrees Fahrenheit or 462 degrees Celsius.
Solar exploration is the third flight made by Venus, and each orbit around it is designed to fly closer to the sun.