DiscoverOxford Sparks Big QuestionsWhat's the origin of water on Earth?
What's the origin of water on Earth?

What's the origin of water on Earth?

Update: 2025-05-14
Share

Description

With more than 70% of its surface covered in water, Earth is rightly known as the "blue planet". But where did this water - so essential to life - originate? While some theories suggest that hydrogen was delivered to Earth from space via asteroids, new research indicates that the building blocks for water may have been present on our planet all along. We chat to Tom Barrett from Oxford's Department of Earth Sciences to find out more.

 

 

Comments 
00:00
00:00
x

0.5x

0.8x

1.0x

1.25x

1.5x

2.0x

3.0x

Sleep Timer

Off

End of Episode

5 Minutes

10 Minutes

15 Minutes

30 Minutes

45 Minutes

60 Minutes

120 Minutes

What's the origin of water on Earth?

What's the origin of water on Earth?

Oxford Sparks