How far away is Mars? The exact answer varies, of course, as both it and our planet are constantly moving along their own orbits around the Sun. But on average, Mars is about 225 million km/140 million miles from Earth. Give or take a few.

To most people (myself included) those are just numbers. Big numbers — and really not even all that big in an astronomical sense. So to give a sense of what it means to cross the distance between here and Mars, interactive designer David Paliwoda created a web page that illustrates the scale involved quite nicely. If our entire planet were reduced to a sphere 100 pixels in diameter, and you could travel outward at a velocity of 200,000 km/h (7,000 pixels/second, in his model) how far would Mars be?

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  • NLSI’s SwRI team investigates wandering gas giants and the late heavy bombardment of the Moon

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    A dramatic event early in the history of the Solar System– called the late heavy bombardment, also nicknamed the lunar cataclysm– may have caused planets to migrate in our solar systemThere may have been a dramatic event early in the history of the Solar System–the intense bombardment of the inner planets and the Moon by planetesimals during a narrow interval between 3.92 and 3.85 billion years ago, called the late heavy bombardment, but also nicknamed the lunar cataclysm.

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ELS 2015

Did you know?

The moon is actually moving away from earth at a rate of 1.5 inches per year.

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