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.

Saturday, September 5, 2026

Brief description of Solor System

The sun
If you weighed a hundred pounds on Earth you would weigh 2707 pounds on the sun.

Mercury
A year is 87.97 days. A day lasts 58.65 Earth days. Your weight would be 58 pounds if you weighed 100 pounds on Earth.

Venus
A day is 243 earth days. A hundred pounds equal 88 pounds on Venus. It is 900 degrees.

Mars
A year on Mars is 686.98 days. A day about the same day as Earth. Your weight would be 38 pounds if you weighed 100 pounds on Earth.

Jupiter
Jupiter is 318 times bigger then Earth. A year is 11.9 Earth years. It has well above 60 known moons. It has a ten hour day. 100 pounds is 234 pounds on Jupiter. If it was 20 times larger it could be classified as a star. It has unseen rings.

Saturn
This is the second largest planet. It is flatest at the poles. This has 62 known moons. Titon is its largest. A year is 29.5 times as long as on Earth. A day is 10 hours and 14 minutes. 100 pounds would weigh 115.

Uranus
It's year is 84.01 Earth years. It has 27 moons. It also has rings. 100 pound would be 89 pounds.

Neptune
Its day is 16 hours. One year is 164.83 Earth years. It has 13 moons. The largest is Triton. It has rings. 100 pounds would equal 113 pounds.

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