January 15th, 2015

How North America would measure up to Mars Astronomy Central

Earth’s sister planet Mars boasts some huge structures such as Olympus Mons and Valles Marineris, but the planet isn’t actually that big. In the image above see how big the United States and Canada would be if it was on the red planet. So if you could take a plane from one side of Mars to the other, it would take probably around 8 hours or so. This rusty desert world orbiting between Earth and Jupiter is only 53% the size of our planet, measuring 4,220 miles (6,792 km) at its equator, band from pole to pole it is 25 miles (40 km) smaller. This is why when viewed in a telescope Mars is always pretty small compared to planets like Jupiter and Saturn for example, although that doesn’t mean you can’t see features on this mysterious world. Through a decent sizes telescope you can see the ice caps and dark and lighter land features.
Earth’s rusty neighbour in the solar system is the second smallest of the planets, Mercury being smallest. The actual dry land mass of Mars is around the same as Earth’s, because although Mars is much smaller it doesn’t of course have any seas, you’ll have to go back a few billion years to see cool blue water slopping about on Mars.