It's been quite a week for space exploration, to say the least!
In the Phoenix Mars Lander's life, short of discovering little
green men, nothing could be more important that its discovery of
actual water ice on the surface of the red planet. This
incredible finding was confirmed when the Lander heated up some
of the ice and examined the elemental composition of the vapor
produced - definitely water! Part of the Lander's mission is to
determine whether the Martian surface could have ever supported
life, and water is one of the essential factors of supporting
life. A little further out in our solar system, the Cassini
Spacecraft made another incredible discovery - there are lakes
of liquid ethane on Saturn's Titan moon! This development is
especially exciting, considering that Earth was previously the
only known celestial body to have liquid on its surface. Cassini
also discovered that like Earth, Titan experiences rain,
evaporation, and land that appears to channel rain towards
larger bodies of liquid, like t