Mars may be the God of war, but when its planetary namesake is in opposition to the sun, it's a peaceful association.
This week marks the start of the Mars Opposition -- the closest Earth has come to Mars in the last 26 months. Mars will be closest to the Earth tonight according to the EarthSky website.
The Slooh website offers a way to view the Mars Opposition online. Visitors to the website, according to its authors, will likely be able to see martian features and polar caps up close and personal.