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Disinformation report hotline: 010-85061466
This computer-generated 3D model of Venus' surface shows the volcano Sif Mons, which is exhibiting signs of ongoing activity. /NASA
By analyzing data from NASA's Magellan mission, scientists have identified two volcanoes that erupted on Venus in the early 1990s, NASA said on Monday.
Managed by NASA's Jet Propulsion Laboratory in Southern California, the Magellan mission mapped 98 percent of Venus' surface from 1990 to 1992, and the images it generated remain the most detailed of Venus to date, according to NASA.
This latest discovery builds on the historic 2023 discovery of images from Magellan's synthetic aperture radar that revealed changes to a vent associated with the volcano Maat Mons near Venus' equator. The radar images proved to be the first direct evidence of a recent volcanic eruption on the planet.
By comparing Magellan radar images over time, researchers spotted changes caused by the outflow of molten rock from Venus' subsurface filling the vent's crater and spilling down the vent's slopes.
Launched in May 1989, Magellan was the first spacecraft to take images of the entire surface of Venus and made several discoveries about the planet. Even as it plunged into the Venusian atmosphere and burned up in 1994, it was still collecting data.
Scientists study active volcanoes to understand how a planet's interior can shape its crust, drive its evolution, and affect its habitability. The discovery of recent volcanism on Venus provides a valuable insight to the planet's history and why it followed a different evolutionary path than Earth, according to NASA.