2. Mars quick facts
M s i s 6,800kmacr oss.
ar
It is half the size of Earth’s di am er .
et
I t i s w l know as t he r ed pl anet .
el n
On Mars, it hasn’t r ai ned f or 4 bi l l i on year s.
I t i s 299,000,000 kmf r omt he sun.
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3. Lengt h of a day on M s: 24 Ear t h hour s and 37
ar
Ear t h m nut es.
i
Lengt h of a year on M s: 687 Ear t h days.
ar
At mospher e: M up of ni t r ogen, oxygen and
ade
ar gon.
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4. Escape vel oci t y i s t he speed needed t o br eak f r ee
f r oma gr avi t at i onal f i el d.
The quot ed escape vel oci t y i s t he escape vel oci t y
at a pl anet s sur f ace.
Ear t h: 11.2 kmper second (25,053.6865 mph).
M s: 5 kmper second (11,184.6815 m
ar ph).
Thi s m eans t hat t he gr avi t at i onal pul l on Ear t h i s
st r onger t han t he gr avi t at i onal pul l on M s.
ar
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5. More quick facts
The m m t em at ur e on M s i s 36 c.
axi um per ar
The m ni m t em at ur e on M s i s -123 c.
i um per ar
M s has 2 m
ar oons.
The moons ar e cal l ed D m and Phobos.
ei os
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