Did you know?
Some NASA facts
Four days after it was launched, the Deep Space 1 spacecraft was about 1,000,000 kilometers (about 600,000 miles) from Earth. To fly that far in a jet, you would have to fly for 6 weeks without stopping!
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To communicate with distant spacecraft, NASA's Deep Space Network uses antenna with a diameter of up to 70 meters (230 feet). That is almost as big as a football field.
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It's a small world. More than 1,000 Earths would fit into Jupiter's vast sphere.
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Saturn's beautiful rings are not solid. They are made up of particles of ice, dust and rock -- some as tiny as grains of sand, some much larger than skyscrapers.
Four days after it was launched, the Deep Space 1 spacecraft was about 1,000,000 kilometers (about 600,000 miles) from Earth. To fly that far in a jet, you would have to fly for 6 weeks without stopping!
~~~~~~~~~~
To communicate with distant spacecraft, NASA's Deep Space Network uses antenna with a diameter of up to 70 meters (230 feet). That is almost as big as a football field.
~~~~~~~~~~
It's a small world. More than 1,000 Earths would fit into Jupiter's vast sphere.
~~~~~~~~~~
Saturn's beautiful rings are not solid. They are made up of particles of ice, dust and rock -- some as tiny as grains of sand, some much larger than skyscrapers.
posted by Aleksa at 9:18 PM
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Preparing For a Home Disaster
There are at least seven global or widespread disasters that seem likely to occur at sometime in the future. A large asteroid hitting the earth is one of those seven. It is generally accepted by scientists that asteroids have struck the earth in the past causing widespread damage. It is believed that asteroids will continue to collide with the earth every now and then. Maybe every sixty million years a big one comes along that is large enough to have a global effect on survival of earth's living things. The chances of such an event happening in a particular person's lifetime are tiny. But that tiny chance is there.
http://fallbrookremodeling.com/sec17.html
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