Sentinel-6 satellite takes off
CGTN
01:53

The Sentinel-6 satellite took off from a U.S. air force base in California today. 

See how this U.S.-European satellite will play a vital role in measuring the world's oceans to help people deal with climate change.

Also, see how the satellite's transporter the Space-X Falcon 9 rocket booster returned to earth for later reuse.

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