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Science -Important points-Space

1-Carbon Dioxide gas composes 95.32% of Mars’s atmosphere

2-The minimum distance between Earth and Mars is 35 million miles

3-The length of day of Mars is 24.6229 hours

4-Mariner 4  spacecraft first visited Mars.

5- Mars take to orbit the Sun in 686.98 days.

6-Asaph Hall discovered the two satellites of Mars

7-Red Planet is called as Mars.

8-Mars is the fourth planet from the Sun. Named after the Roman god of war.

9-Mars is the second smallest planet in the solar system behind Mercury.

10-Egyptians called Mars the “the backward traveler” because Mars appeared to move backwards through the zodiac every 25.7 months.

11-Mars red color is due to iron oxide, also known as rust, and has the consistency of talcum powder. Literally, the metallic rocks on Mars are rusting

12-No human could survive the low pressure of Mars. If you go to Mars without an appropriate space suit, the oxygen in your blood would literally turn into bubbles, causing immediate death

13-Mars lacks an ozone layer; therefore, the surface of Mars is bathed in a lethal dose of radiation every time the sun rises

14-Mars has 37.5% of the gravity that Earth has. This means that a 100-pound person on Earth would weigh only 38 pounds on Mars and could jump three times as high

15-Galileo Galilee was the first person to observe Mars through a telescope, in 1609

Mars Planet Profile-

Equatorial Diameter: 6,805 km

Polar Diameter: 6,755 km

Mass: 0.642 x 10^24 kg (0.107 x Earth)

Equatorial Circumference: 21,297 km

Known Moons: 2

Notable Moons: Phobos & Deimos

Orbit Period: 686.98 Earth days (1.88 Earth years)

Orbit Distance: 227,943,824 km (1.38 AU)

Surface Temperature: -87 to -5 °C

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