(MUSIC)
JOAN CARTAN-HANSEN, HOST:

SATELLITES ARE USED TO STUDY A
LOT OF DIFFERENT THINGS AND

SOME OF THEM YOU MIGHT NOT
EXPECT.

SATELLITES ARE USED TO COUNT
POLAR BEARS.

TO DETERMINE WIND SPEED AND
DIRECTION FOR WIND FARMS.

TO CHECK THE MOISTURE CONTENT
IN SOIL.

SATELLITES WATCH HOW ALGAE
GROWS AS A WAY IN KEEPING

TRACK OF THE HEALTH OF A WATER
SYSTEM.

SATELLITES TRACK GLACIER MELTS
AND THE EFFECT ON SEA LEVELS.

THEY PLAY A PART IN GUIDING
SELF DRIVING CARS.

SATELLITES MONITOR THE GROWTH
OF CITIES LIKE LAS VEGAS

AND INVENTORY CEMETERIES IN
THE CZECH REPUBLIC.

THEY HELP PALENTOLOGISTS LOOK
FOR DINOSAUR TRACKS,

ALLOW SCIENTISTS TO PREDICT
THE NUMBER OF MOSQUITOES AND

ASSIST SKI RESORTS DESIGNING
THOSE EXCITING BLACK DIAMOND

SKI RUNS.

SATELLITES CAN DETERMINE THE
SIZE OF A CROWD,

EXPORE THE BOTTOM OF THE
OCEAN,

AND POLICE ILLEGAL CUTTING OF
THE RAINFOREST IN BRAZIL.

BY USING SATELLITES AND REMOTE
SENSING, SATELLITES CAN HELP

SOLVE SOME OF THE BIGGEST
CHALLENGES FACING OUR EARTH.

FOR MORE INFORMATION ABOUT
SATELLITES, CHECK OUT THE

SCIENCE TREK WEBSITE.

YOU'LL FIND IT AT SCIENCE TREK
DOT ORG