The Solar System Archives - Page 18 of 25

June 8, 2019June 15, 2019

How The Sun Works

We depend on the Sun every day to generate the energy that makes life on Earth possible, but have you considered how the Sun works?

The key to the Sun’s energy-supplying ability is a delicate balance between gravity and electromagnetism. Gravity curves space and pulls together all objects that have mass. The greater the mass, the greater the force of gravity. Right now gravity is pulling us toward the center of the Earth, but we are being held in place by the strength of the Earth’s crust and whatever floors or objects we have below us. The strength of the surfaces supporting us comes from electromagnetic forces between electrons and the protons in the nucleus of atoms. Those forces bond atoms of elements to each other forming compounds.

Since the Sun’s mass is more than a million times that of Earth, its gravity is more than a million times as great. The tremendous force in the core of the Sun overcomes the electromagnetic force and squeezes atoms of hydrogen tightly together igniting a thermonuclear reaction producing helium.

The creation of helium atoms releases high energy gamma-ray photons. If those gamma rays reached Earth, they would kill us. But the vast majority of them are transformed before they leave the surface of the Sun. On the way from the core to the surface they bounce off protons and electrons heating the hydrogen gas in the outer portion of the Sun. That heating increases the gas pressure enough to overcome the pull of gravity. Otherwise, the Sun would collapse on itself.

The bouncing of those gamma rays slows them so much that it takes hundreds of thousands of years for them to reach the Sun’s surface. If they could travel in a straight line, it would take only seconds, but they would emerge as deadly gamma rays that would reach the Earth in eight minutes, destroying all life. By the time those sterilizing gamma-ray photons reach the Sun’s surface, their energy has mainly been reduced to life-giving optical photons. There are still some dangerous rays that reach the Earth, but our atmosphere takes care of most of those.

That is a very simplified description of how the Sun works. Our Sun is a special star that provides the energy needed to sustain life on Earth without the high-energy rays that would destroy it. As you enjoy a beautiful sunset, you don’t have to know how the Sun works, but the Creator did. This finely-tuned system shows evidence of design by a Master Engineer, not a chance accident.
— Roland Earnst © 2019

May 26, 2019May 24, 2019

How Far Away Is the Sun?

How Far Away Is the Sun? Does it matter how far away the Sun is? Absolutely yes. The picture shows the order of the planets in our solar system, but not their distance from the Sun. So how far away is the Sun from Earth?

Any star that has planets orbiting it may potentially create a “habitable zone” where the light and heat are just right for the possibility of life to exist. Earth resides in the middle of the Sun’s habitable zone with Venus and Mars near the edge of the zone. Of course, there are many other factors required to support any kind of life, and it appears that Earth is the only planet in our solar system that has all of those factors. Earth has everything needed to support not just primitive life, but advanced life.

So what is the range of the habitable zone? That depends on the star. The size and brightness of the star are critical. Another essential factor is the type of radiation emitted by the star. Our Sun has the just-right radiation. Other stars may emit x-rays, gamma rays, or other deadly radiation in amounts that would destroy all life and prevent a habitable zone from existing.

Back in the eighteenth century, scientists determined the distance to the Sun by watching a transit of Venus across the Sun. Venus passes between the Earth and the Sun twice every hundred years or so. By measuring the time of the transit of Venus from two locations on Earth, scientists were able to use triangulation and simple math to calculate the distance to the Sun.

But the question was, how far away is the Sun? The Sun is about 93,000,000 miles (150,000,000 km) away from us. Since the speed of light is 186,000 miles (300,000 km) per second, it takes about eight and one-third minutes for the light from the Sun to reach the surface of the Earth. The energy the Sun delivers to our planet is just right to make life possible.

If someone asks you “how far away is the Sun,” you can say it is the “just right” distance. There are so many “just right” features of our planet that we can genuinely say we are in the “Goldilocks Zone.” Some think it was all just an accident, but we believe it was God’s plan and design.
— Roland Earnst © 2019

May 16, 2019May 15, 2019

Properties of Light

When you open your eyes in the morning, take a minute to thank God that you can see. We should reflect upon how good it is to have light instead of the darkness of night. The properties of light make it unique and special.

I am keenly aware of my gift of sight because of a long association with Glynn Langston, who is blind and manages our outreach to the visually impaired. In my lectures, I frequently refer to Edwin Abbott’s book Flatland to help people understand dimensions and how the spiritual is different from the physical. Glynn was born blind, so he is unable to visualize the concept of a sphere crossing a plane and leaving the outline of a circle. He has been kind about it, but my wife once said to me, “How do you expect a blind man to visualize anything!” Even those of us who can see have trouble understanding the properties of light beyond what meets the eye. Radio waves, gamma rays, X-rays, ultraviolet rays, and infra-red rays are all light!

The properties of light make it difficult to comprehend. The most general definition of light is that it is the energy released when a charge changes momentum. The bundle of energy released is called a photon, and the amount of change in momentum determines the energy of the released light. Even in the visible spectrum for humans, the different colors we see are determined by how much energy the light has. Violet has much more energy than red. Ultraviolet has more energy than violet. X-rays and gamma rays have even more energy, but they are still light. Infrared, and radio waves have lower energies than red. That is why infrared warms you and ultraviolet gives you a sunburn. It is also why radio waves can pass through the walls of your home without causing damage and gamma rays can also pass through things, but they will do significant damage.

In the creation process, there had to be special accommodations for the properties of light coming to Earth from the Sun and from outer space. The ozone layer had to be in place to absorb ultraviolet and avoid damage to life. The eyes of every living thing that uses some form of sight had to be designed to function in the part of the spectrum that fit its diet. Rattlesnakes, for example, have specialized sight organs to see in the infrared. Because they eat rodents whose bodies give off radiation in the infrared, a rattlesnake can see its prey on the darkest night. Nearly every insect sees some part of the spectrum other than the colors visible to humans. That is how a mosquito finds you and how insects navigate at night.

Not every star in the sky gives off the properties of light that are needed for life to exist. Some stars radiate in the X-ray part of the spectrum, and others radiate energies too low to be useful to life. Even our trees and shrubs require light in the green part of the visible spectrum to know when to shed their leaves in preparation for winter. In Job 38-41, God spoke to Job to show His wisdom and design and convince Job of his ignorance. Many of the designs God pointed to are connected to light. “Where is the way where light dwells, and where is the location of darkness?” (38:19) “By what process is light parted which scatters the east wind upon the earth?” (38:24) “How does the eagle seek the prey and see that which is afar off?” (39:29)

The Bible speaks of light that is not produced by the acceleration of an electric charge. The most important of these is described in Matthew 5:14-16: “You are the light of the world … let your light so shine before men that they may see your good works and glorify your Father which is in heaven.” Let those of us who are Christians not only be amazed by God’s design of the properties of light and the world in which we live, but let us also strive to be the light Jesus calls us to be.
— John N. Clayton © 2019

May 7, 2019May 7, 2019

Scientific Method Is a Friend of Faith

Scientific Method Is a Friend of Faith Our mission statement is: “Science and faith are friends and not enemies.” One of the challenges that we hear from atheists and skeptics is that statement is bogus because the scientific method can not be applied to it.

As a public school science teacher I always tried to make sure that students knew what scientific method is and could see how to apply it to the problems we face in the modern age. Sometimes that is incredibly difficult to do. Our textbooks usually gave six steps to use the scientific method:

1. Identify and define the problem.
2. Accumulate all possible data.
3. Formulate a tentative hypothesis that would solve the problem in step 1.
4. Conduct experiments to test the hypothesis – the more experiments, the better.
5. Interpret the results of the experiments without prejudice.
6. Repeat the steps until you find an acceptable solution.

In high school science classes, those six steps are usually easy to do, but sometimes later data alters what we thought was a solid fact proven by scientific method. Suppose we ask, “What causes gravity?” We could say “I think gravity is a property of mass.” All objects with mass have a gravitational attraction for all other d objects that have mass. Other people might say that it’s a property of electric charge, or maybe spin. You write down all the possibilities and conduct experiments to see which hypothesis can be experimentally verified.

To see if mass produces gravity, I fill two large bags with cement, and I hang them close to each other. If mass causes gravity, they should attract each other. That is an experiment I can do. I can also charge two balls electrically and see if they attract each other including the electric forces in the calculation. I can spin the two balls and see if they change their attraction for each other as they spin. The mass experiment works, and all the others don’t. I publicize my results and wait for additional experiments to support or deny what my experiments have shown.

The example I have just described is in most physics textbooks and has been done and repeated hundreds of times. But then a scientist did an experiment that didn’t support this conclusion. He found that when a beam of light passed by a huge object (the Sun), the light curved. This suggested that gravity was actually a product of space, not mass. The difference was that the size of the experiment produced different results when you used a star instead of a bag of cement.

As we have looked at the very large (quasars) and the very small (quarks), we have found that the scientific method is hard to do and sometimes impossible. String theory, brane theory, multiverse theory, and a variety of other proposals simply cannot be tested by an experiment. For the time being at least, we cannot test them by scientific method. They are not alternatives we can hold up as fact. They cannot even be considered as serious scientific explanations since they cannot be demonstrated or falsified by scientific method.

Trying to use the scientific method in areas like psychology, sociology, and matters of faith are also frequently difficult. What we generally do is to rely on statistics to evaluate a potential cure for a psychological difficulty. Does a treatment method work? Is a particular activity statistically helpful in relieving a mental or spiritual problem? As more and more data become available, we examine that data. We must reject some psychological theories (like Freud’s view of sex) and use the data to make a new proposal we can analyze.

Christ challenged his followers to examine the data. When the disciples of John came to Christ to ask if He was the promised Messiah, He responded: “Go and tell John what things you have seen and heard: how that the blind see, the lame walk, the lepers are cleansed, the deaf hear, the dead are raised …” (Luke 7:22). Jesus didn’t ask the disciples to take His word for it. He asked them to look at the evidence. The evidence supports the claims of Christianity. If we honestly examine the evidence, our investigation will lead to a better understanding of how our faith works.

The scientific method is not an enemy of Christianity. The whole basis of our ministry is to ask people not to blindly accept what anyone says. The title of our ministry is “Does God Exist?” and that is the question at hand. We offer data for our readers to evaluate. The tentative hypothesis is that God does exist and that intelligence and design will be seen everywhere we look in the creation. As you continue to look at new data, we hope that you will find the solution for the struggles in life. The scientific method is a friend of faith.
— John N. Clayton © 2019

April 16, 2019April 15, 2019

Black Hole Picture and The Beginning

On April 11, 2019, scientists released the first actual image ever taken of a black hole. The black hole picture used wavelengths that are outside of what our eyes can detect. Astronomers used eight radio telescopes to see wavelengths that are beyond human vision. They photographed a black hole that is as large as our entire solar system, so it is a supermassive black hole.

This scientific accomplishment is significant because it allows scientists to test some of the predictions of Albert Einstein even down to the shape of the hole. A black hole is so massive that even light itself cannot escape the gravitational pull. The relationship of gravity and the shape of space is a concept proposed by Einstein that has radically improved our understanding of the nature of the universe.

There are important implications for apologetics in this discovery as well. A significant question that has been debated by atheists and believers for hundreds of years is whether the universe had a beginning or whether it has always existed. The biblical concept is that there was a beginning. Well-known atheists have claimed that matter/energy is eternal and just gets changed from one form to another forever. The nature of a black hole is that it sucks in everything that gets near it, including light. There is no escaping a black hole and attempts to propose a way around this fact such as wormholes and white holes have all been disproven.

If the universe has existed forever, and if black holes are continuously sucking in all matter including electromagnetic radiation, what would be the ultimate result? It seems pretty obvious that everything would have been sucked up by black holes and there would be nothing left but one supermassive black hole. That obviously isn’t the case, so there must have been a beginning to the creation.

If there was a beginning, there had to be a cause to that beginning. Ideas such as string theory and brane theory have attempted to get around this logical point without success. If there was a cause, there has to be a causer. The design, intelligence, and purpose that we see in the cosmos identify some of the properties of that causer, and God fits those criteria uniquely.

The black hole picture is another case where the advancement of science provides evidence for the factual nature of, “In the beginning, God created the heaven and the Earth. “

April 14, 2019April 10, 2019

Are They Space Aliens?

NASA posted this picture on apod.nasa.gov on April 8, 2019. Yang Suite took the photo in northern Norway of a phenomenon that lasted about 30 minutes. Witnesses said that colorful clouds, dots, and plumes suddenly appeared. Can you imagine what would have happened if the sky over Washington D.C. had been filled with what you see in this picture? Are they space aliens?

We have often pointed out that finding life in outer space would have no implications for the integrity of the Bible or the teachings of Jesus Christ. The Bible simply doesn’t say that this planet is the only place where God created life. We have also pointed out that there are no cases where seeing something we don’t understand cannot be explained by natural or human actions. We have also pointed out that people who try to make money from something that the public doesn’t understand must be dealt with skeptically.

In this case, the picture is of a NASA-funded project called Auroral Zone Upwelling Rocket Experiment (AZURE). Gas tracers were dispersed from two short-lived rockets into the ionosphere at altitudes of 70 to 150 miles (112-240 km). The goal was to measure how the solar wind transfers energy to the Earth and powers auroras. Science still has much to learn about the design of the solar system and how something like an aurora takes place.

So are they space aliens? No, and anytime we can see something that we don’t understand, we should seek to understand it and recognize the design and intelligence that is involved. The more we know of the creation, the closer we can get to the Creator.

We thank Yang Suite for his kind permission to use his picture.

April 13, 2019April 10, 2019

Physical Forces That Make Life Possible

I have a bicycle wheel that I use to demonstrate circular motion and forces to my physics students. Some of the forces that we can demonstrate seem to contradict common sense, but they are physical forces that make life possible.

The wheel has a handle on both sides. If you spin it rapidly and put one handle in the crotch of your hand between your thumb and first finger, you can completely let go of the other handle, and the wheel will stay in place, seemingly defying gravity. As the wheel slows down, it begins to wobble, and the slower it goes, the more rapid its turning motion is. This is called precession, and it applies to all spinning objects.

Several years ago when I was teaching this unit in my physics class, I did this demonstration. My class skeptic, who tried to make sure I knew he wasn’t impressed with anything I did, said: “OK – big deal, how does that mean anything to me?” My reply was that he wouldn’t exist if the universe had not been designed with these laws in place creating the physical forces that make life possible.

We live on a globe spinning at roughly 1000 miles per hour. The globe itself is revolving around the Sun at 67,000 miles per hour in a solar system that is orbiting the core of our Milky Way galaxy at 515,000 miles per hour. Each of those motions involves forces that make life possible. We would not have weather moving heat and moisture around the globe without the rapid spinning. The Earth would collapse into the Sun if we weren’t traveling at such an enormous speed. The solar system would collapse into the core of the galaxy and be absorbed by the black hole that holds our system together if we weren’t moving fast enough to avoid such a thing happening.

We understand these fundamental laws of physics, but our observations tell us that the picture we have painted here is oversimplified. Stars on the outer edges of the galaxy are circling at roughly the same speed as stars near the core, and that should not be happening. We know that there must be dark matter filling in for the lapses in speed that we measure. Either that or the darkness is simply in our understanding.

The reality of the motions and physical forces that make life possible on Earth are there for us to examine. However, the implications of what we see defy our imagination and speak of the reality of the God who designed and created it all.

Data from Notre Dame Magazine, Spring 2019, page 47-49.

April 9, 2019April 8, 2019

Galileo Is a Poster Child

Atheists frequently use Galileo as proof that religion is destructive and that good scientists don’t believe in God. In reality, Galileo is a poster child for the view that we try to present in all of our websites, videos, and printed materials.

Atheists have created a classic example of “fake news,” and the facts are undeniable in Galileo’s case. Galileo was a firm believer in God and the Bible, and he remained so all of his life. Among his most famous statements about science and faith were, “The laws of nature are written by the hand of God in the language of mathematics … The human mind is a work of God and one of the most excellent.”

Galileo argued that the Earth revolved around the Sun, not the other way around. That was in opposition to the way the church leaders interpreted the Bible. The Pope urged Galileo to present both sides of the argument in a book. The Pope insisted that since God is omnipotent, He could create natural phenomenon any way He wanted to. Galileo wrote the book as a dialogue between the two sides. He named the character presenting the argument in favor of an Earth-centered solar system “Simplicio” meaning “buffoon.” Galileo made the Earth-centered case seem dull-witted. That caused the Pope to put Galileo in the permanent isolation of house arrest. Galileo was never tortured, and his house arrest was in the hospitality of luxurious private residences belonging to friends.

The main point here is that Galileo is a poster child for the harmony of science and faith because he was a believer in the biblical worldview who advanced a better scientific understanding of the universe. C.S. Lewis wrote, “Men became scientific because they expected law in nature, and they expected law in nature because they believed in a Legislator.” Johannes Kepler who gave us the laws of planetary motion wrote: “The chief aim of all investigations of the external world should be to discover the rational order which has been imposed upon it by God and which He revealed to us in the language of mathematics.”

As the famous scientist Michael Faraday lay on his deathbed, a visiting friend asked him what his speculations were now that he knew he was dying. His response was “Speculations, man, I have none! I have certainties. I thank God that I do not rest my dying head upon speculations, for I know whom I have believed and am persuaded that He is able to keep that which I have committed to Him against that day.”

Since Galileo is a poster child for science and faith, you could also add Kepler and Faraday and several others.

All quotes are from Just Thinking magazine, Volume 27.1 available from Ravi Zacharias International.

March 24, 2019March 21, 2019

Reality of Space Travel

Although space-travel movies are exciting and fun, they are not very realistic. Einstein’s theory of special relativity says that it’s impossible to travel at the speed of light. There is overwhelming proof that he was right. That fact has an impact on the reality of space travel.

Astronomer Dr. Hugh Ross wrote an excellent book entitled Why the Universe is the Way It Is. In this book, he states that due to the laws of physics the top speed of a spaceship would be limited to about one percent of the speed of light, or 6.7 million miles (10.8 million km) per hour. Based on that, he says that for aliens to travel from any other planetary system where intelligent beings could possibly exist would take at least 25,000 years! (Remember that it will take nine months just to travel to Mars, our neighboring planet.)

So when you watch a two-hour movie in which people travel from one planetary system to another at hyper-light-speed, remember that it’s only Hollywood. The reality of space travel is not what we see in the movies. We live in a universe designed by a Creator who gave us a special place with everything we need to live. Is there any kind of life, not just intelligent life, anywhere else in this vast universe? We don’t know, but the chances of meeting intelligent beings from another planet are very, very slim. That’s the reality of space travel.

By the way, my picture is poking a little fun at a statement made by the well-known atheist biologist Richard Dawkins in his book The Selfish Gene. He begins chapter 1 by stating, “Intelligent life on a planet comes of age when it first works out the reason for its own existence. If superior creatures from space ever visit earth, the first question they will ask, in order to assess the level of our civilization, is: ‘Have they discovered evolution yet?’”

So does discovering evolution indicate advanced civilization and the level of our intelligence? More importantly, does evolution explain the reason for our existence? Personally, I think the reason for our existence is not found in evolution, but begins in Genesis chapter 1 and is developed in the rest of the Bible.

March 20, 2019March 20, 2019

Why Is The Equinox Important?

Today, March 20, 2019, is a special day as the spring equinox arrives for the Northern Hemisphere. Today the Sun will set exactly in the west and tomorrow it will rise exactly in the east when observed from the Equator. The day will be exactly 12 hours long and night will be exactly 12 hours long. After today in the Northern Hemisphere, the days will be longer than the nights. Officially spring arrives today at 9:58 PM Greenwich Mean Time (5:58 PM Eastern Daylight Time where we live).

In reality, all of this is an exaggeration of the real situation. Don’t expect a balmy spring day if you live in Michigan (as we do) or other northern areas. Ice and snow have to melt, and the land has to warm up. Nevertheless, the equinox does remind us of Earth’s design and how many variables control our existence on this planet. What does happen on this day is that the Sun will be directly overhead at noon at the equator.

During the northern winter, Earth’s tilt has caused the Sun to be overhead south of the Equator. As the Earth moves around the Sun, the Sun’s location relative our planet will drift north until June. When the summer solstice occurs on June 21, the Sun will be overhead at 23 degrees north latitude. The more direct sunlight not only warms the Northern Hemisphere, but it avoids overheating the Southern Hemisphere.

If Earth did not have a 23-degree axis tilt, the Sun would beat down on the equator from directly overhead all year long. The Equator would become so hot that nothing could live there. The northern and southern latitudes would both freeze. Wind belts created by air rising violently at the equator would be hurricane force 24/7. We see that happening on planets in the solar system that do not have an axis tilt.

Ancient people knew that the position of the Sun changes throughout the year. They used elaborate but primitive observatories to determine the time to plant and harvest based on the Sun’s position. Unfortunately, this led many cultures to worship the Sun. Nowhere does the Bible encourage or condone the worship of any celestial bodies. The Bible recognizes the seasons and the role of the Sun as designed by God for human existence. (See Genesis 1:14-15).

The ancient psalmist David said it (Psalms 8:4) and the writer of Hebrews quoted it (Hebrews 2:6), “What is man that you keep him in mind or the son of man that you look after him?” The equinox is a good time to be reminded of God’s provisions for us and thankfully worship the Creator, not the creation.