![]() ![]() "Whether Venus is volcanically active or not has been a subject of debate," Truong said. That catastrophe was one of the deadliest and most destructive volcanic events in recorded history on Earth, destroying more than 70% of the Indonesian island of Krakatoa and its surrounding archipelago. In order for phosphides to reach the altitudes necessary for the previously reported phosphine detection, the researchers suggested a Venusian outburst on a scale comparable to the Krakatau eruption on Earth in 1883 was necessary. ![]() Explosive volcanic eruptions could then spew these phosphides - in the form of volcanic dust - into the atmosphere, where the chemical could react with sulfuric acid to form phosphine. The scientists found that volcanism on Venus could potentially bring small amounts of phosphorus-loaded compounds known as phosphides from deep in the mantle layer of the planet to the surface. To see if there might be a nonbiological explanation for phosphine in the skies of Venus, the researchers analyzed lab data on phosphorus chemistry as well as calculations of volcanic and atmospheric activity. ![]()
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