Galileo's Telecope

I had a good July 4th weekend visiting family up in the Philly area. While there, Saturday morning I went to the Franklin Institute to see the exhibit on Galileo, which is highlighted by one of his original telescopes (one of the original ancestors of the Hubble Space Telescope). Through the glass case, one can see a little handwritten note by Galileo on the telescope tube (near the rim on the upper end as displayed in the case). If you can be in or near Philadelphia, try to catch this exhibit, which closes September 7. (The Institute is also currently featuring a Star Trek exhibit that's worth seeing.)