How far is the Moon? Hello How far away from the Earth is the moon?
Reply About 60 Earth radii, fluctuating a bit because the orbit is an ellipse. An earth radius is 6371 km, and you can do the multiplication yourself. A much more interesting question is “How do we know that”? A clever Greek astronomer, Aristarchus, figured that out more than 2000 years ago–without telescopes, using just a few simple observations and logic. See http://www.phy6.org/stargaze/Shipprc2.htm 86. Twinkle, twinkle little star How I wonder, what you are. Help me please ! I am trying to help my young sister in-law with some research for a project and I cannot find the information I need on stars. I need to know their locations in the sky, their sizes, what they are made up of and what impact they have on the Earth. I need this information as soon as possible as she has an assignment to hand in Friday the 6th of September. If you can help me I know we would both be so grateful… Thank you [Received from Australia, 5 September] Reply Dear Janet It’s incredible, the way teachers
