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October 22 2013


July 31 2013


"Earth's first portrait surfaced more than 20 years ago, courtesy of Voyager 1. In that historical shot from 1990, Earth figures as a “pale blue dot,” barely perceptible against a ray of scattering light (see below). In 1994, Carl Sagan, an experimenter for the Voyager 1 and 2 spacecraft, chatted with SciFri about first seeing that dot. “I thought, that’s us,” he said. “That’s our world. That’s all of us—everybody you know, everybody you love, everybody you ever heard of lived out their lives there, on a mote of dust in a sunbeam.” Listen to the conversation in the podcast below."

(via Carl Sagan Reflects on the Pale Blue Dot)

Carl Sagan Day

January 10 2013

We need your help to find and mark ‘fans’ and ‘blotches’ on the Martian surface. Scientists believe that these features indicate wind direction and speed. By tracking ‘fans’ and ‘blotches’ over the course of several Martian years to see how they form, evolve, disappear and reform, we can help planetary scientists better understand Mars’ climate. We also hope to find out if these features form in the same spot each year and also learn how they change.

via Planet Four

January 04 2013


November 18 2012

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