With upcoming missions planned for Venus, scientists are eager to figure out the origin of the mysterious flashes.
Occasional flashes light up Venus’ shroud of clouds. Previous analyses have hinted that the bursts of light could be lightning in the hellish world’s atmosphere. But a new study suggests most of the flashes may be nothing more than the brief yet brilliant blazes of meteors., scientists are eager to figure out the light’s origin .
Previous landers on Venus have often detected electromagnetic static similar to the type picked up on AM radio and caused by lightning during thunderstorms on Earth, Blaske says. And orbiters and Earth-based telescopes have discerned brief, bright flashes in the atmosphere. But the static and optical flashes have never been detected simultaneously, Blaske says. And, notes Paul Byrne, a planetary scientist at Washington University in St. Louis who was not involved in the study, “it’s not clear there is the potential for lightning on Venus” given how little is known about the dynamics of its atmosphere.
Blaske, then at Arizona State University in Tempe, and her colleagues wondered whether meteors could be masquerading as lightning on Venus. Two surveys counted the flashes of light: one by a telescope on Arizona’s Mount Bigelow and one by instruments aboard Japan’s
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