Astrosphere for July 25, 2007

Here’s a photo of Jupiter with the Great Red Spot and Ganymede taken by Mike Salway.

And here are the stories.

First, take a moment and calculate your environmental footprint at Live Science.

Next, join the Bad Astronomer, and ask yourself, what would Newton do?

According to Daily Galaxy, the US Department of Defense is building a creepy simulation of the entire planet on computer.

Starstryding Pamela Gay explains hot rocks and greenhouse gases.