WEBVTT

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(MUSIC)
JOAN CARTAN-HANSEN, HOST:

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SATELLITES ARE USED TO STUDY A
LOT OF DIFFERENT THINGS AND

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SOME OF THEM YOU MIGHT NOT
EXPECT.

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SATELLITES ARE USED TO COUNT
POLAR BEARS.

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TO DETERMINE WIND SPEED AND
DIRECTION FOR WIND FARMS.

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TO CHECK THE MOISTURE CONTENT
IN SOIL.

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SATELLITES WATCH HOW ALGAE
GROWS AS A WAY IN KEEPING

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TRACK OF THE HEALTH OF A WATER
SYSTEM.

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SATELLITES TRACK GLACIER MELTS
AND THE EFFECT ON SEA LEVELS.

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THEY PLAY A PART IN GUIDING
SELF DRIVING CARS.

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SATELLITES MONITOR THE GROWTH
OF CITIES LIKE LAS VEGAS

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AND INVENTORY CEMETERIES IN
THE CZECH REPUBLIC.

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THEY HELP PALENTOLOGISTS LOOK
FOR DINOSAUR TRACKS,

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ALLOW SCIENTISTS TO PREDICT
THE NUMBER OF MOSQUITOES AND

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ASSIST SKI RESORTS DESIGNING
THOSE EXCITING BLACK DIAMOND

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SKI RUNS.

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SATELLITES CAN DETERMINE THE
SIZE OF A CROWD,

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EXPORE THE BOTTOM OF THE
OCEAN,

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AND POLICE ILLEGAL CUTTING OF
THE RAINFOREST IN BRAZIL.

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BY USING SATELLITES AND REMOTE
SENSING, SATELLITES CAN HELP

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SOLVE SOME OF THE BIGGEST
CHALLENGES FACING OUR EARTH.

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FOR MORE INFORMATION ABOUT
SATELLITES, CHECK OUT THE

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SCIENCE TREK WEBSITE.

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YOU'LL FIND IT AT SCIENCE TREK
DOT ORG