Public domain
Heavy and Light Just Right
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
Using NASA Herschel Space Observatory, astronomers have discovered that comet Hartley 2 possesses a ratio of heavy water to light, or normal, water that matches what found in Earth oceans.
NASA Image and Video Library’s own descriptionCredit lineHeavy and Light Just Right. NASA/JPL, 2011-10-05. Public domain. ID: PIA14737.
