Ask Me Everything'

Why is Mars red?

Mars is known as the red planet because of the color of its top layer of soil. This soil is rich in iron and has combined with oxygen to become a rusty red color. From Mars’s surface, you would see a rusty-red landscape and a pink sky as winds blow its fine dust into its atmosphere.

53 Mars is one of four rocky planets in the solar system.

O Also called the terrestrial planets, they are madę mainly pL of rock and iron.

^    -j%i    Mercury—the smallest of all the

^    , planets and the closest to the Sun.

O    i *' * This world is gray and rocky, just

EL    like Earth’s moon.

Venus—the only visible thing is Venus’s thick clouds; sulfur makes them yellow in color.

t Earth —from space, Earth has three main colors: white clouds, blue oceans, and brown land.

# Mars—the most distant rocky planet. It is red all over except for two white caps of ice at its poles.

The biggest mountain in the solar system¹³

_Martianvolcano    Olympus

Mons It is around 15 mUes

(24 km) high, aneUs

hase is 403 miles (648 Km) across. Earth's Mount

Everestis only 5,5 miles

(8.85 km) high.

Planet statistics			W
planet	average distance	time to orbit	mass relative	diameter	rotation
	to Sun (miles)	the Sun	to Earth	(miles)	period
Mercury	40 million (57.9 million km)	88 days	0.055	3,032 (4,879 km)	59 days
[ Venus	67.2 million (108.2 million km)	224.7 days	0.82	7,521 (12,104 km)	243 days
Earth	93 million (149.6 million km)	365.26 days	1	7,926(12,756 km)	23.9 hours
! Mars	141.6 million (227.9 million km)	687 days	0.11	4,220 (6,792 km )	24.6 hours i

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In the late 1800s, Italian astronomer Giovanni Schiaparelli reported seeing thin markings on Mars’s surface, which he called channels. As the Italian word for “channels” is caneli, some believed that he meant irrigation canals used by Martians to water their crops.

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