National Aeronautics and Space Administrion

Since its inception in 1958, NASA has accomplished many great scientific and technological feats in air and space. NASA technology also has been adapted for many nonaerospace uses by the private sector. NASA remains a leading force in scientific research and in stimulating public interest in aerospace exploration, as well as science and technology in general. Perhaps more importantly, our exploration of space has taught us to view Earth, ourselves, and the universe in a new way. While the tremendous technical and scientific accomplishments of NASA demonstrate vividly that humans can achieve previously inconceivable feats, we also are humbled by the realization that Earth is just a tiny "blue marble" in the cosmos. Check out our "Thinking About NASA History" folder online as an introduction to how history can help you.

Friday, March 9, 2012

Sun

This star is ours. It is about 854,590 miles in diameter. It is 50 times the size of Jupiter. 10 million earths could fit within it. It has 7,000 million tons of hydrogen which turns into helium every second.

This star burns like a furnace. The core could have a temperature of at least 60,000,000 degrees. The surface is called the photosphere. It gets acne which is called a Sunspots. Facvlea are bright rivers within the sun. Coronal mass ejections hurl vast amounts of energy into space.

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