Earth & Mars - NASA Mars Exploration

&

E A R T H

M

A

.

S

D

BOTH EARTH

AND

MARS

HAVE CANYONS,

VALLEYS, CRATERS,

VOLCANOES, ICE

CAPS, STORMS,

AND SEASONS.

MARS

IS HALF

THE DIAMETER

OF

EARTH, BUT

BOTH PLANETS

HAVE THE SAME

AMOUNT OF DRY

LAND.

EARTH’S

ATMOSPHERE IS

77%

NITROGEN

AND

21% OXY­

GEN. MARS’ AT­

MOSPHERE IS

95%

CARBON DIOXIDE.

MARS

HAS FOUR

SEASONS, JUST

LIKE

EARTH, BUT

EACH ONE LASTS

TWICE AS LONG.

EXPLORE MARS http://mars.jpl.nasa.gov

National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pasadena, California JPL 400-935 3/01/01 EW-2001-02-009-JPL

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