how many years would it take to get to mars and back?
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All in all, your trip to Mars would take about 21 months: 9 months to get there, 3 months there, and 9 months to get back. With our current rocket technology, there is no way around this. The long duration of trip has several implications.
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Much of interstellar space is actually inside our solar system. It will take about 300 years for Voyager 1 to reach the inner edge of the Oort Cloud and possibly about 30,000 years to fly beyond it.
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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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Taking our distance of 240,000 miles, that works out to an average speed of 37 mph. Of course, that is 267 days of pedaling 24/7 at a considerable level of exertion. If instead you pedaled for six hours a day, it would take four times as long—so that's almost three years, and it's not even all the way to the moon.
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So if we could travel at the speed of light, it would take 736 years to get there, but at our current fastest rate of space travel, it would take around 18,000 years for each light year, so it would take around 13 million years to reach the nearest star of Orion's Belt.
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To get to the closest galaxy to ours, the Canis Major Dwarf, at Voyager's speed, it would take approximately 749,000,000 years to travel the distance of 25,000 light years! If we could travel at the speed of light, it would still take 25,000 years!
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With current technology severely limiting the velocity of space travel, however, the differences experienced in practice are minuscule: after 6 months on the International Space Station (ISS), orbiting Earth at a speed of about 7,700 m/s, an astronaut would have aged about 0.005 seconds less than those on Earth.
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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!
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Last year, astronomers raised the possibility that our nearest neighbor, Proxima Centauri, has several potentially habitable exoplanets that could fit the bill. Proxima Centauri is 4.2 light-years from Earth, a distance that would take about 6,300 years to travel using current technology.
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All data and info sent to Mars or relayed back to Earth takes from 21 minutes up to 40 minutes for it to be received depending on the distance between Mars and Earth. So a round trip would take between 42 minutes to 1 hour , 20 minutes in order to send instructions to the rover to take the image and to send it back.
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The route can be as long as 2336 miles, or 3759 kilometers. On average, the journey takes 103 hours and 40 minutes.
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A Soyuz trip to the space station takes around six hours from launch to docking. A return journey takes around half the time, at just over three hours to make it safely to the ground.
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Earth completes one revolution of Sun in 365/366 days, and we take it as 1 year, but other objects in space, have more longer/shorter orbit than that of Earth. So there, 1 year could be shorter or longer than Earth.
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With our current technology, it's estimated it'll take humans around five months to reach Mars. But NASA scientist Philip Lubin is working on a system where lasers propel spacecraft with giant sails to the Red Planet in as little as three days.
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Depends on the spacecraft - The Sun is 93 million miles away. Voyager 1, travels at about 38,000 miles per hour give or take … so not including acceleration or deceleration, it would take about 100 days to reach the Sun.
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The voyage that would have taken you more than 6,000 years in an SUV or 600 years in a jetliner has taken New Horizons a little under a decade. And after Pluto, New Horizons will sail through the Kuiper Belt (an extended ring of planetary construction debris) and out, eventually, toward the stars.
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How long does it take to travel to Mars? The trip takes around seven months; a bit longer than astronauts currently stay on the International Space Station.