Wednesday, January 19, 2011

How Big is the Universe?

When you stop and think about the Sun, the Moon and the stars, do you ever wonder we are not seeing? Here is a quote from Lloyd John Ogilvie on the subject.

The immensity of the heavens held the psalmist in a spell of wonderment. With his naked eye on a clear night, he could see about five thousand stars. Today with a four inch telescope we can see more than two million, and with the Mount Palomar two hundred inch mirror, we are able to see more than a billion. The latest means of observation reveal even greater numbers. The expanse is beyond our comprehension. If we set out and traveled at space rocket speed of 19,000 miles per hour, it would take 144,000 years to reach the nearest star. We measure the universe in light years rather than miles. The speed of light is 186,000 miles per second, so that in a year of seconds, light travels six trillion miles. This distance is called a light year. Calculation shows that it is equal to 60,000 times the distance of the sun from the earth. The universe is so vast that to cross it at the speed of light, you would travel forty billion light years.” (Ogilvie, L.J. 1984 Falling into greatness, p. 32 Thomas Nelson, Nashville)

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