More and more data shows that leaving Earth and venturing into outer space away from Earth’s constant gravity and the protection of our atmosphere and magnetosphere is much more destructive than anyone imagined. One of our regular readers sent us a quote from NBC News about the potential health problems of space travel. Here is what it says:
“The number of deaths due to heart disease among the Apollo lunar astronauts is almost five times greater than that in non-flight astronauts, or astronauts who never flew missions in space, researchers from Florida State University found. Compared to astronauts who flew only in low Earth orbit (LEO), the heart risk among Apollo astronauts is four times higher. There were no differences between LEO and non-flight astronauts.”
We recently reported on the astronaut twin study, which showed physical changes even in low Earth orbit. We don’t yet know what potential health problems of space travel may become evident in the long-term.
Micro-gravity and exposure to radiation seem to combine to cause bodily harm. Earth’s magnetic field is more protective than science has understood. Working in the International Space Station is less of an issue because the LEO means that some of Earth’s protections still function.Going to Mars may be impossible with the present spaceship design.
We will be interested in future data on travel to the Moon and prolonged existence in outer space. We know that God’s design of planet Earth makes it suitable for life, but we are not fully aware of the potential health problems of space travel. You can read the full NBC report from HERE.
One of the most exciting experiments conducted on the Space Station has been the twin study in space. Mark and Scott Kelly are identical twins, and both are astronauts. Scott lived aboard the International Space Station for a year. Mark remained on Earth and lived his normal lifestyle. Both men took daily blood and urine samples so that scientists could evaluate any changes caused by living in space.
Life aboard the space station is very regimented and very different from Scott’s previous life on Earth. On the Space Station, fluids swelled around Scott’s upper body and head, his immune system worked overtime, and his metabolism was altered. Of greatest interest to scientists was that Scott’s genetic makeup – his DNA – had been damaged.
There are protective structures called “telomeres” at the ends of our chromosomes. These structures get shorter with age and put the person more at risk for age-related illnesses. In Scott’s case, the telomeres temporarily lengthened and then became shorter. This means that space flight could put the body at risk for age-related conditions such as heart disease and cancer.
What conclusion can we draw from the data of the twin study in space? First, the human body was designed for living on planet Earth. Even a small change in environmental characteristics can make genetic changes that can be detrimental to human health.