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The next generation of Earth Observation: Earth-i

Earth as seen from space
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Space
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A new company called Earth-i has announced it will be launching a constellation of satellites into Earth's orbit that will download "fast-turn-around pictures and colour video of the planet's surface."

The Coldest Place in the Universe

An image of the Boomerang Nebula.
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Space
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The Boomerang Nebula is the coldest location in the known universe: it measures at roughly 2 degrees colder than empty space! This nebula is the result of the death of a red giant star, and the extreme temperature is caused by the rapid expansion of the nebula. According to thermodynamics, if you expand a gas you, cool a gas (just try using one of those compressed air cans for cleaning electronics). However, according to astronomers, a single star's death could not account for a strong enough