Top news for December 21, 2008

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NASA sees moon lunar mining trial within the next decade

A 'Captured' Alien Planet May Be Hiding at the Edge of Our Solar System

NASA's James Webb Space Telescope mission — Live updates

How to Protect Yourself from Smoky Wildfire Air

How to Use the Air Quality Index

These Ants Are Probably Better at Navigating Than You Are

Forget Oil. New Wildcatters Are Drilling For Limitless ‘Geologic’ Hydrogen

Poisons and Perils on the Salton Sea

Shedding Light On A Common Online Dating Practice That Needs To Stop

UFOs Keep Appearing in the News. Here's Why We Can't Quit Them