how long would it take to get to the moon at the speed of light?
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On average, there is about 238,855 miles (384,400 kilometers) of distance between our planet and its large natural satellite. This means all moonlight we see is 1.255 seconds old, and a round-trip between the Earth and moon at light speed takes about 2.51 seconds.
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We see a planet like Jupiter because its light—which like the other planets and the Moon originates on the Sun—takes about 43 minutes to reach Jupiter. The return trip to the Earth can take from 35 to 52 minutes, depending on whether we are on the same side of the Sun as Jupiter or on the other side.
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The speed of light is much faster than the speed of sound in air. If you want to compare, the speed of sound in air is ~ 343 m/s and the speed of light is 3x1010 m/s. In other words, light travels 186 thousand miles in 1 second, while sound takes almost 5 seconds to travel 1 mile.
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Earth's average surface gravity is about 9.8 meters per second per second. ... The Moon's surface gravity is about 1/6th as powerful or about 1.6 meters per second per second. The Moon's surface gravity is weaker because it is far less massive than Earth.
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Therefore, a light shining from the surface of Mars would take the following amount of time to reach Earth (or vice versa): Closest possible approach: 182 seconds, or 3.03 minutes. Closest recorded approach: 187 seconds, or 3.11 minutes.
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However, assuming that it is there, it is located 4.37 light-years from Earth. So traveling at light speed, it would only take a little more than 4 years to get there.
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The speed of light is the speed electromagnetic waves travel. The speed of light is 3.0 x 108 m/s in space. The speed of light is the same in all matter. The speed of higher frequency light slows down more than lower frequency light in matter.
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Actually, radio waves travel very quickly through space. Radio waves are a kind of electromagnetic radiation, and thus they move at the speed of light. The speed of light is a little less than 300,000 km per second. At that speed, a beam of light could go around the Earth at the equator more then 7 times in a second.
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In fact: If you could walk from Earth to Mars at a brisk rate (about five miles per hour) it would take about 4,000 years to reach the Red Planet. If you drove a car 70 mph, it would take 228 years. If you had a 747 airlane, it would still take 32 years.
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It takes 27 days, 7 hours, and 43 minutes for our Moon to complete one full orbit around Earth. This is called the sidereal month, and is measured by our Moon's position relative to distant “fixed” stars. However, it takes our Moon about 29.5 days to complete one cycle of phases (from new Moon to new Moon).
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How long does it take to travel to the Moon? It takes about 3 days for a spacecraft to reach the Moon. During that time a spacecraft travels at least 240,000 miles (386,400 kilometers) which is the distance between Earth and the Moon. The specific distance depends on the specific path chosen.
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Forget it! Although it may be one of the closest galaxies to our own, since the Andromeda Galaxy is 2.5 million light years distant it would take 2.5 million years to get there if (and it's a huge 'if') we could travel at the speed of light.
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Vega is 25 light years away. This translates to 147 trillion Earth miles. The answer is dependent on how fast you are traveling. At 50,000 miles and hour, it would take you 117,600,000 years.
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In short, at a maximum velocity of 56,000 km/h, Deep Space 1 would take over 81,000 years to traverse the 4.24 light-years between Earth and Proxima Centauri. To put that time-scale into perspective, that would be over 2,700 human generations.
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As the Sun sets, the Moon rises with the side that faces Earth fully exposed to sunlight (5). The Moon has phases because it orbits Earth, which causes the portion we see illuminated to change. The Moon takes 27.3 days to orbit Earth, but the lunar phase cycle (from new Moon to new Moon) is 29.5 days.
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Your actual progress toward the center per black hole is more in the order of about 1,300 to 1,500 light years per trip. These shortcuts take their toll, though.
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It is traveling away from the Sun at a rate of 17.3 km/s. If Voyager were to travel to Proxima Centauri, at this rate, it would take over 73,000 years to arrive. If we could travel at the speed of light, an impossibility due to Special Relativity, it would still take 4.22 years to arrive!