It is estimated that a single satellite launch can range in cost from a low of about $50 million to a high of about $400 million. Launching a space shuttle mission can easily cost $500 million dollars, although one mission is capable of carrying multiple satellites and send them into orbit.
The Continental Congress adopted the Great Seal on June 20, 1782, and eventually the U.S. Congress approved it on September 15, 1789. The final design on the face of the Great Seal was primarily the creation of William Barton, an expert heraldist.
The bald eagle was chosen June 20, 1782 as the emblem of the United States of American, because of its long life, great strength and majestic looks, and also because it was then believed to exist only on this continent.he bald eagle was chosen June 20, 1782 as the emblem of the United States of American, because of its long life, great strength and majestic looks, and also because it was then believed to exist only on this continent.