Articles tagged with: Wide-field Infrared Survey Explorer
NASA Discovers 25,000 New Asteroids
And as an example of how infrequent it is for an asteroid to crash into our planet, not one of the 25,000 is aimed for Earth.
It’s a pretty impressive haul for WISE (Wide-field Infrared Survey Explorer), finding that number since last December, and also discovering 15 new comets. The telescope is up in space, just like the famous Hubble. Being infrared, it can “see through impenetrable veils of dust, picking up the heat glow of objects that are invisible to regular telescopes.”
While I wouldn’t pretend to know if the $320 million cost is a good investment for science, as an early warning system it is extremely cheap if we can somehow avert a disaster in 2012 or any other year.