Observation

What is the Distance from Earth to Mars?

by Fraser Cain December 5, 2013

This article was originally published on Aug 10, 2012. We’ve updated it and added this cool new video! Sending spacecraft to Mars is all about precision. It’s about blasting off from Earth with a controlled explosion, launching a robot into space in the direction of the Red Planet, navigating the intervening distance between our two […]

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Cosmology in the Year 1 Trillion

by Vanessa D'Amico June 23, 2011

Much of what is known today about the birth of the cosmos comes from astronomical observations at high redshifts. Due to the accelerated expansion of the Universe, however, astronomers of the future will be unable to use the same methods. In a trillion years or so, our own Milky Way galaxy will have merged with […]

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