NASA announces new evidence for water ice at Mercury’s poles

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Scientist have long speculated that ice existed on the planet Mercury. Radio waves bounced off the planet decades ago indicated many bright spots on the planet’s surface. Scientist were reluctant to conclude that the white areas were ice though. The white reflection could have been silicate, sulfur, or other highly-reflective substances. Today, a new analysis…

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Computer generated simulation provides stunning visualization of the half million pieces of “space junk” orbiting Earth

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95% of the objects in this computer generated simulation of low-Earth orbit objects is “orbital debris”, not satellites. “Space junk” consist of everything from spent rocket stages, lost equipment and defunct satellites to erosion, explosion and collision fragments. NASA estimates there are more than 500,000 pieces of space junk orbiting the Earth (“tens of millions”…

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