It’s uninhabitable but scientists believe the Red Planet is the best option for possible human colonisation.
Size At 6 792km in diameter, it’s about half the size of Earth (12 756 km).
Atmosphere Earth’s atmosphere (78% nitrogen, 21% oxygen) is more than 100 times denser than Mars’ atmosphere, which consists of about 96% carbon dioxide.
Temperature The average is -63ºC (compared with Earth at 14ºC).
Mars solar year Equal to 687 days on Earth.
Gravity and weight On Mars you’d experience 62,5% less gravity than on Earth. For example, if you weigh 68kg, you’ll weigh only 26kg on Mars (multiply your weight by 0,38).