Science/Astronomy:

* New Telescope to Revolutionize Asteroid Warning System

http://www.space.com/businesstechnology/051221_pan-starrs.html

A group of telescopes using the world's biggest digital cameras will soon start
scanning the sky from the Hawaiian Islands, tracking down thousands of the
smaller, dimmer and overlooked objects in the Sun's neighborhood.

* Mars Water Assumptions May Be All Wet

http://www.space.com/scienceastronomy/051221_mars_dry.html

The apparent discovery of ancient salty lakes or seas on Mars by NASA's
Opportunity rover last year is viewed as one of the most significant
developments in planetary science.

* Building Blocks of Life Found in Planet-Forming Disk

http://www.space.com/scienceastronomy/051220_building_blocks.html

The basic molecules of life are scattered through the universe, collecting in
faraway galactic clouds, on passing comets and asteroids, and on the planets
here in our solar system.