Public domain
Ancient Earth, Alien Earths Event
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
Dr. Timothy Lyons, Professor of Biogeochemistry, UC Riverside, speaks on a panel at the “Ancient Earth, Alien Earths” Event at NASA Headquarters in Washington, DC Wednesday, August 20, 2014. The event was sponsored by NASA, the National Science Foundation (NSF), and the Smithsonian Institution and was moderated by Dr. David H. Grinspoon, Senior Scientist at the Planetary Science Institute.
NASA Image and Video Library’s own descriptionSubjects
Credit lineAncient Earth, Alien Earths Event. NASA/HQ, 2014-08-20. Public domain. ID: 201408200009HQ.
