Astronauts travel 35,000 miles per hour in orbiting the earth. This would mean about 400 miles per minute or 9 miles per second. Let us imagine that an astronaut could travel 186,000 miles per second, which is the speed of light (or seven times around the earth while you say the word “Jerusalem”).
At this speed, one can reach the moon in less than 2 seconds. In a little more than half an hour, he would have traveled 4 billion miles. He could reach the nearest star in 4 years. In 120,000 years, he could reach the outer edge of the Milky Way. In 2 million years, he could reach the constellation Andromedia. In 20 million years he could get to another galaxy.
And finally, if he decided to visit some of the most distant stars, he could make it in about 6 thousand million years; that is, if he could travel 186,000 miles per second—instead of 9 or 10 miles per second (the common speed of the astronauts).
And to imagine that the Russian astronaut who first circled the earth remarked that he did not see God. He was only about 300 miles into space!
—Bernhard DalagerEncyclopedia of 15,000 Illustrations: Signs of the Times.