Sep16
In Search of Dark Asteroids (and Other Sneaky Things)
NASA is set to launch a sensitive new infrared telescope to seek out sneaky things in the night sky — among them, dark asteroids that could pose a threat to Earth.
September 15, 2009: Ninjas knew how to be stealthy: Be dark. Emit very little light. Move in the shadows between bright places.
In modern warfare, though, ninjas would be sitting ducks. Their black clothes may be hard to see at night with the naked eye, but their warm bodies would be clearly visible to a soldier wearing infrared goggles.
To hunt for the “ninjas” of the cosmos — dim objects that lurk in the vast dark spaces between planets and stars — scientists are building by far the most sensitive set of wide-angle infrared goggles ever, a space telescope called the Widefield Infrared Survey Explorer (WISE).
Source: Nasa Science – click here for full article
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