Travel in Space

Travel in Space
Popular movies portray travel in space as just being a matter of solving simple propulsion problems. The truth is that cosmic radiation is now better understood as a huge risk to space travel. In Scientific American (February 2017, page 54) Charles Limolihas wrote an excellent scientific discussion of the dangers of cosmic radiation.

Galactic cosmic rays are charged atomic nuclei flying at nearly the speed of light, probably coming from the supernova remnants of dead stars. Our Sun generates a great amount of radiation, but the cosmic rays are much more of a hazard. When these atomic nuclei hit molecules in our body, they ionize atoms, knocking electrons off the atoms and causing the atoms to become charged. These charged atoms hit other atoms, and there is a domino effect that is greatly magnified because of the extra energy involved. In human bodies, there are clusters of damage from such radiation, and just trying to duplicate the process in the laboratory has turned out to be incredibly difficult. Limolihas and his fellow researchers have shown that there is a much greater effect on brain tissue than anyone imagined.

The Earth is designed to handle this huge radiation by having two levels of shielding. The Earth’s magnetic field sweeps galactic cosmic rays away from the areas of the planet where most people live, and the atmosphere stops much of the rest. The amount of cosmic radiation we receive on the surface on Earth’s surface is relatively harmless. When you travel in space beyond Earth’s magnetic field, you, have virtually no protection, and that is going to be a huge challenge for space engineers to solve.

The lesson we would bring from this is that God’s design of Earth becomes more and more amazing as we learn of the complexities that have to be taken care of for you and me just to get up in the morning.
–John N. Clayton © 2017

Global Warming Nonsense

Global Warming Thermometer
The “hot button topic” for a wide variety of people today is the issue of global warming. It is easy to understand why political figures want to use this issue to manipulate their followers, but followers of Jesus Christ seem to be getting swept up in the paranoia also. Jesus said, “Take care that no one misleads you. For many will come claiming my name and saying, ‘I am the Messiah’; and many will be misled by them. The time is coming when you will hear the noise of battle near at hand and the news of battles far away; see that you are not alarmed. Such things are bound to happen; but the end is still to come. For nation will make war upon nation, kingdom upon kingdom; there will be famines and earthquakes in many places. With all these things the birth-pangs of the new age begin” (Matthew 24:5-8 NEB). We need to be informed, but global warming is not of eternal significance. Some people try to make a religion of climate change. We can get involved scientifically or politically if we so choose, but let us not get involved religiously.

So what are the facts?
#1. Climate change is happening. Anyone can look at climate data worldwide and see the changes on a global scale. This is global–not local. We just had the warmest winter here in Michigan that I can remember, and I have lived here almost 60 years, but that is not directly due to global warming.

#2. This is not the first time. The Earth’s rocks show periods of warming and cooling. Natural processes cause changes in the Sun which affect the Earth. Geologic events such as volcanic eruptions can affect climate for long periods of time.

#3. Humans have altered the planet. This isn’t even worth commenting on, and what we have done has effects that are still unknown. God told us to “take care of the garden” (Genesis 2:15), and as custodians of the planet, we need to take care of it. Releasing greenhouse gasses indiscriminately would seem to be failing to do that.

#4. There are consequences to what we do and what we don’t do. As an example, cancer is mostly caused by human actions. The list of diseases human actions have caused or catalyzed is enormous. Not managing Earth’s resources well has cost us dearly in the past, and it will do so in the future.

Jesus said not to let these things disturb our minds. As Christians, we need to keep our eye on the cross and on our journey to an eternal home free of global warming, war, and all the other things that concern people about the physical world in which we live. The physical is important, but the spiritual is far more significant.
–John N. Clayton © 2017

Should We Go to Mars?

Should We Go to Mars?
Concept of Future Mars Outpost

Chances are you have seen the movie The Martian or the National Geographic TV series on Mars, with the hypothetical first colonization of the red planet. Politicians have jumped into the popular hysteria by making proposals about establishing human occupation of the planet. Some wealthy private companies are proposing to offer trips to Mars. But should we go to Mars?

There is nothing in the Bible that would attempt to restrict humans from leaving Earth. By the same token, there is no encouragement to do so. What the general public does not seem to understand is that God incorporated an incredible number of design features into the Earth for us to be able to live here. We have discussed those features over and over in our printed publications, in our Dandy Designs series, and also on our Facebook page. When you don’t have those design features available, human life becomes very tentative.

NASA has recently discovered that astronauts who flew to the moon were four times more likely to die from heart disease than those who had even the minimal protection of the International Space Station. Astronauts are also showing signs of what has been nicknamed “Space Brain.” This involves dementia and cognitive impairment. The effect of weightlessness is still being studied, but the loss of bone and muscle mass is known to be a consequence of living without gravity.

The cost of resolving all these issues is huge. Even though we will probably be able to overcome these problems in the distant future, we need to understand that God’s design of Earth is highly complex. Should we go to Mars? We may want to make sure we use our resources to solve the hunger, homelessness, and ecological issues before we venture to other worlds. 

–John N. Clayton © 2017

NASA data is available in The Week, December 23, 2016, page 27.