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 team at Brown/MIT finds new rock type on the Moon

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    “These are very unusual areas,” said NLSI team member Carle Pieters, a planetary geologist at Brown University in Providence, R.I., who reported the finding November 2 at a meeting of the Geological Society of America.

    Pieters has dubbed the new rock type OOS, because it is rich in the minerals orthopyroxene, olivine and [...]

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Did you know?

The distance to the Moon is measured to a precision of a few centimeters by bouncing laser beams off reflectors placed there by the Apollo astronauts.

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