Extrasolar planets are one of my favorite interests.
This one found has at atmosphere. Now one is found to have water vapor eventhough it is too hot. Closer and closer to maybe finding a planet more like Earth.

SPITZER FINDS WATER VAPOR ON A HOT, ALIEN PLANET
------------------------------------------------
A scorching-hot gas planet beyond our solar system is steaming up with
water vapor, according to new observations from NASA's Spitzer Space
Telescope.

http://spaceflightnow.com/news/n0707/11watervapor/
Students will
(E.O.A.S.1) State how much water vapor is in the Earth's atmosphere and how water vapor helps the Earth and humans.
(E.O.A.S.2) Read the article and what effects of water vapor around this planet