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“The intriguing feature could improve our understanding of volcanism not only on Io but on other worlds as well.”

“Erebus helps us understand what other volcanism in the region could look like.”

“Iceland is essentially one of the best places in the world to study this … because we have both volcanism and glaciers,” volcanologist Michelle Parks of the Icelandic Meteorological Office told Reuters.

"What's remarkable is that Mars' volcanism has incredible similarities, but also differences, to Earth," said Day.

To better understand its volcanism, scientists hoped to catch a Venusian eruption in the act.