Illustration of a comet, ice grains and Earth’s oceans
SOFIA Observations Fuel Debate about the Origin of the Earth’s Oceans
Date

Illustration of a comet, ice grains and Earth’s oceans. SOFIA found clues in Comet Wirtanen’s ice grains that suggest water in comets and Earth’s oceans may share a common origin.

Credit
NASA/SOFIA/L. Cook/L. Proudfit
Image Number
SCI2019_0010