The Seas of Titan

The Cassini Spacecraft has been orbiting Saturn for some time now, but recently, it has found seas on one of Saturn's moon, Titan, the second largest moon in the solar system. The dark features, caught by Cassini's radar instrument are found near Titan's north pole and are thought to be filled with liquid methane or ethane. Scientists think that these lakes must be continuously re-supplying methane to Titan's atmosphere, finding an answer to the mystery.

Find out more at:

• NASA
• Wikipedia (Cassini-Huygens, Titan)
  

Happy π Day!

Today is March 14, and that means it's time to celebrate pi! Pi is defined by Wikipedia as "either as the ratio of a circle's circumference to its diameter, or as the ratio of a circle's area to the area of a square whose side is the radius." Wow, that's a big definition! But we probably all remember it as the value that helps us get the circumference or the area of a circle. Since almost everything in our world contains circles, pi may be the most important, and famous, symbol in the world. Pi day also happens to be the birthday of Albert Einstein, the great physicist.