Cat's Cradle - www.catscradle.com

Great source for the latest news in science - http://www.sciencedaily.com/

Space based telescopes:

Kepler space telescope - http://www.nasa.gov/mission_pages/kepler/main/index.html

Hubble space telescope - http://hubblesite.org/

Chandra X-ray Observatory - http://chandra.harvard.edu/

Spitzer space telescope - http://www.spitzer.caltech.edu/