When boring people like you and I go on vacation, we might go camping in the woods or something. But not NASA. NASA goes camping on a virtual asteroid. And the worst part is that NASA didn't actually have to take any time off: asteroid camping (among other things) is what it does for a living. Asteroid camping. Not fair.

Today we can all breathe a little easier thanks to a new survey of near-earth asteroids by NASA's Wide-field Infared Survey Explorer (WISE). After a year of scanning the celestial sky with infrared light between January 2010 and February 2011, the study has shown there are significantly fewer mid-size near-Earth asteroids than thought. That's not even the best news.

Don't look now, but our entire planet is busily chasing after an asteroid a thousand feet across that's preceding the Earth in its orbit. It's the first known Earth-orbit example of what are called Trojans, and like other promiscuous planets (I'm looking at you, Jupiter), it now appears that Earth's got 'em.

If you're a fan of classic video games, you'll know that Asteroids was one of the most addictive games of the early 1980s. Zapping the never ending stream of encroaching rocks would get your adrenaline pumping better than most games of the era.