A Thin Veil A very thin layer on a planet's or moon's surface, the main body of a gas giant, atmospheres are condensations of low mass molecules, such as hydrogen, or oxygen in a gas or liquid form. They can also be signature for very many things about an object - for instance - life...... Our planet's atmosphere is polluted with oxygen - a key signature. More Themes

MESSENGER Mission Education Modules View the exciting MESSENGER mission education and public outreach website to learn more about the MESSENGER mission to Mercury. By studying Mercury, we look at the diversity of worlds and add to the knowledge base about the Solar System, its formation, and evolution. Cosmic Calendar Our interactive calendar showcases what's happening out there in the solar system and back here on Earth. We've included launches, mission events, anniversaries, celestial events and even a few birthdays. Get Involved Scientists and engineers are crucial to NASA's education mission. NASA's Office of Space Science has created a vast support network to assist scientists interested in education and public outreach. Icarus ICARUS is the official publication of the Division for Planetary Sciences of the American Astronomical Society and is dedicated to reporting the results of new research - observational, experimental, or theoretical - concerning the astronomy, geology, meteorology, physics, chemistry, biology, and other scientific aspects of our Solar System or extrasolar systems.

05.25.08 - 09.30.08 Phoenix: Surface Operations 09.19.08 Chandrayaan-1: Launch 09.21.08 (18:57:18 UT) 5th Anniversary, Galileo: Jupiter Impact 09.22.08 Last Quarter Moon 09.22.08 Earth Equinox 09.23.08 (09:03:23 UT) 50th Anniversary, Unnamed (Ye-1/1): Launch 09.23.08 50th Anniversary, Unnamed Luna (Ye-1/1): Launch 09.27.08 (23:14 UTC) 5th Anniversary, SMART-1: Launch