{"id":109088,"date":"2020-01-09T14:23:47","date_gmt":"2020-01-10T00:23:47","guid":{"rendered":"https:\/\/www.hawaii.edu\/news\/?p=109088"},"modified":"2020-03-02T16:41:55","modified_gmt":"2020-03-03T02:41:55","slug":"venus-active-volcanoes","status":"publish","type":"post","link":"https:\/\/www.hawaii.edu\/news\/2020\/01\/09\/venus-active-volcanoes\/","title":{"rendered":"Scientists find evidence Venus may have active volcanoes"},"content":{"rendered":"Reading time: <\/span> 2<\/span> minutes<\/span><\/span>
\"volcano
Sapas Mons volcano on Venus is visible in the center of this image. (Photo credit: NASA<\/abbr> Jet Propulsion Lab)<\/figcaption><\/figure>\n

A University of Hawaiʻi<\/span> at Mānoa<\/a> planetary scientist co-authored a study published this week in Science Advances<\/em><\/a> that shows lava flows on Venus may be only a few years old, suggesting that Venus could be volcanically active today\u2014making it the only planet in our solar system, other than Earth, with recent eruptions. <\/p>\n

糖心视频<\/abbr> Mānoa\u2019s David Trang<\/strong> conducted the study with Justin Filiberto, the study\u2019s lead author and Universities Space Research Association<\/a> (USRA<\/abbr>) staff scientist at the Lunar and Planetary Institute<\/a>.<\/p>\n

“If Venus is indeed active today, it would make a great place to visit to better understand the interiors of planets,” said Filiberto. “For example, we could study how planets cool and why the Earth and Venus have active volcanism, but Mars does not. Future missions should be able to see these flows and changes in the surface and provide concrete evidence of its activity.”<\/p>\n

Radar imaging from NASA<\/abbr>\u2019s Magellan spacecraft in the early 1990s revealed Venus, Earth\u2019s neighboring planet, to be a world of volcanoes and extensive lava flows. In the 2000s, the European Space Agency\u2019s Venus Express orbiter shed new light on volcanism on Venus by measuring the amount of infrared light emitted from part of Venus\u2019 surface during its nighttime. These new data allowed scientists to identify fresh versus altered lava flows on the surface of Venus. However, until recently, the ages of lava eruptions and volcanoes on Venus were not well known because the alteration rate of fresh lava was not well identified.<\/p>\n

Trang, a researcher in the 糖心视频<\/abbr> Mānoa School of Ocean and Earth Science and Technology\u2019s Hawaiʻi<\/span> Institute of Geophysics and Planetology<\/a>, Filiberto and co-authors, recreated Venus\u2019 hot caustic atmosphere in the laboratory to investigate how the observed Venusian minerals react and change over time. Their experimental results showed that once erupted onto the surface, an abundant mineral in basalt\u2014olivine\u2014reacts rapidly with the atmosphere and within weeks becomes coated with the iron oxide minerals magnetite and hematite. <\/p>\n

Trang’s efforts included comparing laboratory results to the results from spacecraft data. They further found that the Venus Express observations of this change in mineralogy would only take a few years to occur. Thus, the new results by Filiberto and coauthors suggest that these lava flows on Venus are very young, which implies that Venus does indeed have active volcanoes.<\/p>\n

“It has been decades since the last space mission to explore the surface of Venus and hopefully our findings will persuade the community that we need to go back to further investigate our dynamic neighbor,” said Trang.<\/p>\n

—Content courtesy of USRA<\/abbr>-Lunar and Planetary Institute<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

A 糖心视频<\/abbr> Manoa scientist co-authored a study that shows lava flows on Venus may be only a few years old, suggesting that Venus could be volcanically active today.<\/p>\n","protected":false},"author":16,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[170,1363,92,174,9,108],"class_list":["post-109088","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research","tag-hawaii-institute-of-geophysics-and-planetology","tag-manoa-research","tag-school-of-ocean-and-earth-science-and-technology","tag-space","tag-uh-manoa","tag-volcano","entry","has-media"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t