View Full Version : Mars Gets an X-Ray

2005-Sep-08, 03:50 AM
SUMMARY: The European Space Agency's XMM-Newton X-Ray Observatory took this recent image of Mars in the x-ray spectrum. Every planet in the solar system, including the Earth, emits x-rays, but scientists aren't completely sure why. One reason is thought to be "florescence emission", when x-rays from the Sun hit atoms in our atmosphere and then get re-emitted with a characteristic signature. The bulk of the x-rays in the picture are coming from oxygen in the Martian atmosphere.

View full article (http://www.universetoday.com/am/publish/mars_x-ray_view.html)
What do you think about this story? post your comments below.