04/05/2021 06:31 PM | Click to read full article
During a brief swing by Venus, NASA’s Parker Solar Probe detected a natural radio signal. This was the first direct measurement of the Venusian atmosphere in nearly 30 years and it looks quite different from Venus past.
A study published today confirms that Venus’ upper atmosphere undergoes puzzling changes over a solar cycle, the Sun’s 11-year activity cycle. This marks the latest clue to untangling how and why Venus and Earth are so different.