In a light year, light travels nearly six trillion miles. In a light nanosecond, roughly, it travels one foot.
September 15, 2006
September 4, 2006
Who would be most interested in termination shock? An astronomer, as it marks the limits of the Sun’s influence.
The 12 zodiacal constellations cross the Earth’s ecliptic which is the path the Sun seems to take through the sky.
Most stars appear white because they don’t emit enough light for us to see color.
If Superman can fly at the speed of light, it would take him 6 hours to reach Pluto.
If the Earth were the size of a marble, the asteroid belt would be spread over 100,000 square meters. And if all those asteroids were rolled up into a ball at that scale, the ball would be the size of a grain of sand…
The planet we’re taliking about is 4.5 billion years old and has a mass of 6.6 sextillion short tons and a volume of 260 billion cubic miles. It is Earth of course
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