"Download the text (20th edition, January 2007). This site provides a free physics textbook that tells the story of...2500 years of exploration."

Article about research into theraputic benefits Salvinorin A

Wow, there sure are a lot of wonderful astronomy blogs!

Wow, there sure are a lot of wonderful science blogs!

Drag and click the green circle to pan around this image of the Hubble image called the Ultra Deep Field.

Crop circle information organization

Renderings of landscapes on Mars using Terragen and Mars Orbiter Laser Altimeter (MOLA) data

Earth as a pale blue dot

'...this scanner is engaged in one of the most profound paranormal experiments of all time, one that may well prove whether or not it is possible to predict the future....'

'IT HAS long been accepted, at least in theory, that other universes might exist and might even collide with ours. Yet the idea that we would ever be able to see the aftermath of such collisions...'