Summer Solstice, Space Shuttle landing, and "discovery" on Mars

Go on over to Catholic Exchange and read Mary's insightful article about the Summer Solstice.

Did you know that the seasons are caused by the tilt of the Earth's axis. Summer in the Northern Hemisphere occurs when the northern part of the Earth is tilted toward the sun? More here about the Summer Solstice and how and why seasons change.

Check out space shuttle photos and information about the landing today.

And check out an artcle about Mars and the discovery that it used to have oceans.

This is thrilling! View an Online Telescope here!