New research shows that the DNA of astronauts begin to show startling DNA mutations due to their exposure to spaceflight.
in August, looked at the blood taken from 14 astronauts in NASA’s space shuttle program. The researchers noted several DNA mutations in blood-forming stem cells compared to blood taken previously, which could cause concern down the line.The mutations, the researchers say, are worrying but still below the overall threshold of concern. Still, the researchers concluded that astronauts should be subject to periodic blood screening to monitor any possible mutations.
This isn’t the first time that the safety of spaceflight has been called into question, either. There were previously concerns that spaceflight, like that used in NASA’s space shuttle program, could put astronauts at risk of dying from cancer. Ashowed that wasn’t the case, though concerns around the health risks of spaceflight have continued to be raised.
With plans for deep space and commercial spaceflights coming to fruition, scientists are looking at these health risks more closely. And the DNA mutations found in the astronauts are very intriguing and worrying. The researchers looked at blood taken from the astronauts almost 20 years ago. These astronauts flew missions between 1998 and 2001.They then compared the samples to the astronaut’s current blood spectrum, and they started finding the mutations in the DNA.
Finding these DNA mutations in the astronaut’s blood is concerning, yes. But, we don’t know the real cause of these mutations. Was it spaceflight itself, or could the astronauts have been exposed to something that isn’t necessarily a concern anymore? All of this will need to be discovered to properly determine the risk of these mutations in a more widespread fashion.
If we can figure out what is causing the mutations, perhaps we can combat it somehow. There are other concerns we need to address aboutThis article talks about:
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