Nice bit of work and it should have been done long ago for the comparison, even though we actually learn little that is not already known.
From what we have seen regarding UFO's a metal shell provides a natural Faraday cage and a powerful magnetic field is used to move in space. This also protects against external radiation and may well predetermine the typical shapes we all see.
At the same time they have internal gravity. This eliminates all our known problems. Recall that we have had gravity manipulation since 1955 and lab work I am involved with confirmed this a couple of years ago..
We are not really going into space without publicizing this particular technology..
What a Year in Space Did to Scott Kelly
Few people know this better than Scott Kelly, the NASA astronaut who spent nearly a year on the International Space Station from 2015 to 2016. Like other astronauts, Kelly served as a test subject in the study of space travel’s effects on the human body. Unlike other astronauts, Kelly has an identical twin, Mark, an astronaut himself. This gave researchers an uncommon opportunity to monitor the two brothers as they lived in two very different environments—one on Earth and the other 250 miles above it.
The body, sensing and reacting to weightlessness, bristles at life in space. Fluids float freely and clog the sinuses, giving faces a puffy appearance. Bones, relieved of the job of bearing weight, thin. Muscles, faced with the same, atrophy. Parts of the eyeball, for reasons scientists are still trying to pin down, become squished or swollen. And from head to toe, cells, exposed to unearthly levels of radiation, become more at risk for cancer.
But that’s where the explanations end. With all the variables involved, isolating a single cause is nearly impossible. Researchers can’t know whether the changes were caused by microgravity, increased exposure to radiation, lack of air circulation, sleep disruption, a diet of freeze-dried food, or the stress of living in a cramped metal tube with the same people, day in and day out.
Some of the most intriguing changes occurred at the chromosomal level, in the protective bits at the ends of chromosomes that make sure they replicate properly when cells divide. These caps, known as telomeres, are known to shorten as a result of stress. Researchers expected to see this change in Scott. Instead, the astronaut’s telomeres lengthened. “You might at first think, Oh, this is great. He’s going to live longer,” Susan Bailey, the Colorado State University professor who led the telomere research, once told me. “But the opposite side of that coin is always that it also increases cancer risk, because one of the very first things cancers do is turn telomerase on to maintain telomere length so they can essentially be immortal.”
Most of the telomeres bounced back after Scott returned to Earth, but he now has more short telomeres than he did before his mission. In general, this puts someone at greater risk for quicker aging, Bailey said.
Researchers found some surprises in Scott’s gene expression. On Earth, changes in gene behavior occur in response to shifts in routine activities, such as sleep and diet, and Mark’s gene expression changed as well. But the changes to Scott’s gene expression were distinct, and scientists were stunned at the number of changes they recorded, especially in mitochondrial genes, which help the body produce energy, and in genes related to the immune system. More than 90 percent of these genes returned to normal when Scott came back. (This doesn’t mean, researchers are careful to note, that the rest are somehow “mutated,” as some news reports erroneously suggested last year.)
Researchers also detected changes in the mechanism that cells use to control gene expression, but they were too tiny to matter by the time Scott came back.