Origin of life on Earth: Researchers examine observations by NASA's Mars Reconnaissance Orbiter Origin of life on Earth: Researchers examine observations by NASA's Mars Reconnaissance Orbiter The Earliest Evidence Of Life On Earth Comes From Seafloor Deposits Of Similar Origin And Age, But The Geological Record Of Those Early-Earth Environments Is Poorly Preserved, The Researchers Said. News Nation Bureau | Edited By : Neha Singh | Updated on: 09 Oct 2017, 10:14:05 AM New Delhi: Scientists have discovered evidence of ancient sea-floor hydrothermal deposits ...