![](http://static.ddmcdn.com/gif/blogs/dnews-files-2013-02-asteroid-2012-da14-spin-200x200-120213.jpg)
When asteroid 2012 DA14 makes its close approach on Friday,
radio astronomers will be ready to fire radar at the speeding space rock
in an effort to measure its spin.
![](http://static.ddmcdn.com/gif/recipes/asteroid-2012-da14-flyby-200x200-130212.jpg)
If your satellite TV goes out on Friday, can you blame it on an asteroid?
![](http://static.ddmcdn.com/gif/blogs/dnews-files-2013-02-comet-lemmon-glowing-green-200x200-130213.jpg)
Comet Lemmon's coma shines bright green in an image captured by Peter Ward just south of Sydney, Australia.
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