Time to Spring forward

Believe it or not we have officially arrived at springtime. This Saturday, March 20th to be exact. Also, what’s in the night sky this week.

Caption: A blooming Sour Cherry Tree. Photo by Benjamin Gimmel, Photo Credit: Courtesy: Wikipedia
Believe it or not we have officially arrived at springtime. This Saturday, March 20th to be exact. Even though we often think of spring coming to us, in astronomical terms we arrive at this point. The rotation of the earth has recently gotten a little faster after the earthquake that hit Chile weeks ago. What are the mechanisms actually involved in changing the rotation of the earth? Are there earthquakes on other planets? Also, what’s in the night sky this week. [audio: st20100315.mp3]