How long does it take for a spacecraft to travel from Earth to Mars?

About 180 days.

According to the plan proposed by ESA, similar to animals with hibernating habits, astronauts must "gain fat" to store energy before entering hibernation. Afterwards, they enter a "numbing" hibernation state by taking a special drug. Then the brightness of the cabin dims and the temperature drops significantly to "cool" the astronaut's body.

Under normal circumstances, it takes about 180 days to fly from the earth to Mars. The astronauts need to wake up in advance and spend at least 21 days of recuperation.

According to the sketch released by ESA, the entire hibernation residential module is cylindrical, with a diameter of only 5.9 meters and a height of only 5.33 meters. It has 9 system compartments such as life support, living, storage, and work, and can Meet the needs of 6 astronauts. If hibernation technology is not used, the diameter and height of the entire residential module will reach 8-9 meters, and the volume will be three times the former.

Extended information:

The distance between Mars and the Earth

The short distance is about 55 million kilometers, and the farthest distance is more than 400 million kilometers. Close encounters between the two occur approximately every 15 years. In 1988, the distance between Mars and the Earth once reached about 58.8 million kilometers, and in 2018, the distance between the two will reach 57.6 million kilometers. But on August 27, 2003, the distance between Mars and the Earth was only about 55.76 million kilometers, which was the closest in 60,000 years.

However, according to astronomers’ calculations, during the 800 years from 1600 to 2400 AD, Mars was only the third closest to the Earth. According to the calculation results, by September 2, 2366, the distance between the two will be approximately 55.71 million kilometers. By August 28, 2287, the two will be even closer, with a distance of approximately 55.69 million kilometers.

People's Daily Online - "Sleep" all the way from the Earth to Mars? "Hibernation" technology may subvert future space travel