एक ऐसा अंतरिक्ष यान जिसमे कोई कभी नहीं मरता | human hibernation space travel | the passenger science

Some day, astronauts packed into rocketing tin cans bound for other planets may be protected from radiation and space sickness by having their metabolisms depressed to a fraction of their typical rate. They’ll hibernate like bears as they hurtle through space for months at a time. Perhaps they’ll sleep in white coffin-like pods, as the cryo-preserved astronauts in futuristic fantasies like 2001: A Space Odyssey, Alien, and Avatar did.
More likely, though, astronauts and space colonists will learn a few tricks from dehydrated snails, which survive for a year or more ingesting nothing; giant pandas subsisting on low-calorie bamboo; leeches that survive a liquid nitrogen bath; children who have been submerged in frozen ponds yet can still be resuscitated; or skiers buried in an avalanche and brought back to life ever so slowly, reborn from a super-cooled, dreamless state. Scientists call this phenomenon “torpor-induced hibernation.” Once considered outlandish, torpor induction-the old term was “suspended animation”-is under serious study for long-duration spaceflight. The nearest star is Proxima Centauri, located a mere 4.25 light years away. Just for comparison, the Voyager spacecraft, the most distant human objects ever built by humans, would need about 50,000 years to make that journey.Based on our current technology, it's more likely that we're going to have to take our time getting to another star.We see animals, and especially mammals hibernating all the time in nature. In order to be able survive over a harsh winter, animals are capable of slowing their heart rate down to just a few beats a minute. They don't need to eat or drink, surviving on their fat stores for months at a time until food returns.
It's not just bears and rodents that can do it, by the way, there are actually a couple of primates, including the fat-tailed dwarf lemur from Madagascar. That's not too far away on the old family tree, so there might be hope for human hibernation after all.
In fact, medicine is already playing around with human hibernation to improve people's chances to survive heart attacks and strokes. The current state of this technology is really promising.
They use a technique called therapeutic hypothermia, which lowers the temperature of a person by a few degrees.
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एक ऐसा अंतरिक्ष यान जिसमे कोई कभी नहीं मरता | human hibernation space travel | the passenger science
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