Earth-buzzing comet found carrying "ocean-like" water

Earth is a famously wet planet, but where all that water came from in the first place remains a mystery. The most commonly-accepted theory is that comets and asteroids delivered it via impacts during the early days of Earth, and now a NASA study has found new evidence to support that idea. Observations of a comet that whizzed by close to Earth a few months ago show that it contains "ocean-like" water – and this may apply to other previously-dismissed comets too.

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Category: Space

Tags:

• Astronomy
• Comets
• Earth
• NASA
• SOFIA
• Water

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