PDA

View Full Version : Chandra Images the Bright Side of the Moon



Fraser
2005-Sep-09, 05:54 AM
SUMMARY: Although it's usually peering into deep space, Chandra looked a little closer to home and inspected the Moon in the X-ray spectrum. Although the Moon doesn't produce X-rays of its own, it does reflect the radiation of the Sun; various atoms such as oxygen, magnesium, aluminum and silicon fluoresce when the Sun's X-rays bombard the Moon's surface. Measuring the quantity and location of these elements will help test the theory that the Moon was formed when a Mars-sized object slammed into the Earth 4.5 billion years ago.

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