Roland Earnst Archives

July 12, 2020July 11, 2020

Designed for a Purpose

On this website, we often talk about design in living things. Everyone sees design in the world around us. It’s impossible not to see design. Even the leading atheist biologist Richard Dawkins said that biology is the study of things that appear to be designed for a purpose. However, he believes they only appear to be designed because he knows that design requires a designer. The trick is to pretend that it is not design but merely a pattern produced by natural selection acting on random chance mutations.

Our study of design is not the ancient god-of-the-gaps concept where we say, “I don’t know how this happened, so there must be a god who did it.” Instead, we consider the evidence for the possibility of these “designs” happening by pure chance. Is chance or intelligence a better explanation for what we see in living things? Can the features we observe be explained more effectively by natural selection acting on random mutations; or by intelligent design? Which alternative has greater explanatory power and is, therefore, more plausible? Can you say with confidence that living things were not designed for a purpose?

Every day, we see machines and devices created by human intelligence. We marvel at the complexity of such things as computers, automobiles, or vehicles for space travel. The intricate design of living things, including humans, is far greater than any of those human-designed devices. Do we ever question whether the human inventions came together by accident? But some would say, “Those things are not alive, and therefore they can’t design themselves. Living things can change on their own through natural selection.”

That brings up the question of where did the first living thing come from? It came from non-living matter. How did that lifeless material assemble itself into something as complex as a living cell that could take in nourishment and reproduce? Where did the information in the DNA come from? Random text can’t assemble itself into intelligent language, and the DNA contains a language so complex that it took modern computers to decipher it. What intelligence wrote the code within the DNA of each plant and animal, giving them the ability to change and adapt to stay alive?

We see random patterns in clouds, or sand, or waves blown by the wind. We see patterns of sunlight on the forest floor as it shines through the tree leaves. Those things are random. Though they may be beautiful, they are not examples of design. When we see the biological systems working within a living animal or plant or study biomes and ecosystems working in harmony to make life possible, we observe more than a chance pattern. We are beholding something that was designed for a purpose by an intelligent Designer.

Bringing it closer to home—that means an intelligent Designer designed YOU for a purpose.

June 19, 2020June 17, 2020

Life in a Lava Tube on Mars

Lava tubes on Earth are dark and cold places. It’s unclear what they may be like on Mars, but perhaps someone will find out. Future Martian explorers may experience life in a lava tube.

Camping out on Mars is not a good idea. There is no breathable atmosphere, and the radiation is deadly. Without much of an atmosphere, the temperature on Mars varies extremely. On a summer day near the equator, the temperature may reach a comfortable 70 degrees F (20 degrees C). However, without the thermal blanket of an atmosphere, the night-time temperature can drop to minus 100 degrees F (minus 73 C). At the poles, the temperature can get down to minus 195 F (minus 125 C). The average temperature on Mars is minus 80 degrees F (minus 60 C).

Transporting materials to build a suitable shelter on Mars would be difficult. Any structure would have to be small and still might not give adequate protection from radiation. The surface of Mars receives unfiltered solar radiation, cosmic rays, and ionized particles from the solar wind. With the lack of an atmosphere or a magnetosphere, which we have on Earth, there is nothing to block the dangerous radiation. The amount of radiation is many times what astronauts experience in the International Space Station (ISS). NASA limits astronaut exposures in the ISS to months. Explorers might have to spend years on Mars. Just getting there will take about seven months.

What does this have to do with life in a lava tube, and what are lava tubes anyway? During a volcanic eruption, molten lava can bore its way through the ground and run out into the open. When the molten lava exits, it often leaves behind a cave-like underground tube. I explored the Lava River Cave (bottom picture) in Arizona, located in the Coconino National Forest. The walls are black basalt, which the lava left behind, and there is no light except at the entrance. The temperature remains constant at around 40 degrees F (4 degrees C). In most places, the ceiling is high enough that I could stand up, but in other areas, I had to crouch down or get on my hands and knees. The top picture shows a larger lava tube in Iceland.

Researchers have detected what appears to be lava tubes on Mars near Hadriacus Mons, which is a volcanic mountain formed long ago when the Martian interior was hot. They suggest that those lava tubes would be the best location for a Martian outpost. The lava tubes would give protection from the radiation, and it might even be possible to seal one off, pressurize it with oxygen, and heat it. They tested the radiation protection concept in some lava tubes on Earth, including the Lava River Cave in Arizona.

All of this drives home how blessed we are to have a home on planet Earth. I can step outside on a beautiful day, breathe the oxygen, feel the filtered rays of sun on my face, enjoy the pleasant temperature, and thank God for the blessings. Stepping out of the lava tube on Mars without the protection of a super-spacesuit would mean instant death. Even though I enjoyed exploring the lava tube in Arizona, I wouldn’t want to live there. Life in a lava tube does not interest me. I enjoy living on this planet, which God designed to give us everything we need if we will just take care of it.

June 15, 2020June 12, 2020

Wandering Stars in the Sky

The ancient Greeks saw the five visible planets and called them “wandering stars” because they moved randomly across the sky instead of staying in fixed positions like the stars. The word “planet” comes from the Greek word for “wanderer.”

We have known for many centuries that the planets are not stars. They appear to wander because they orbit the Sun, just like our planet Earth. They orbit at different speeds, making them appear to wander in the sky. For astronomers to classify a celestial body as a planet, it must meet three requirements:

It must have enough mass for gravity to cause it to become spherical, unlike an asteroid.
It must not have enough mass to cause thermonuclear fusion, which would make it a star.
It must have cleared the area of debris known as planetesimals.

We have five planets that are visible without the aid of telescopes or even binoculars. Two of the visible planets are called inferior planets, not because of importance but because their orbit is inside Earth’s orbit. They are Mercury and Venus. The other three are known as the superior planets since they are beyond Earth’s orbit. They are Mars, Jupiter, and Saturn.

There is one essential thing the ancient Greeks did not understand about the solar system. They did not know that it is orderly. The Greeks saw a pantheon of gods controlling various aspects of the Earth and skies. Each of their gods had all of the bad traits of humans struggling with each other. It was the Judeo-Christian concept of one almighty and wise creator God who created an orderly system that led to the scientific understanding of the cosmos.

Today, we can study and understand the wisdom of God in creation. Because of that, we can know where the planets and stars, as well as solar and lunar eclipses, will be visible at any given time and from any location on Earth. Those “wandering stars” are not wandering after all.

June 12, 2020June 8, 2020

Fish as Flat as a Pancake

Biologists are always finding and studying new life-forms. Among recent discoveries are fish as flat as a pancake.

How many species of biological life exist? So far, scientists have identified, classified, and named about two million. They estimate that there are somewhere between ten-million and one-hundred-million. How fast are scientists finding and describing new forms of life? About 18,000 new species are identified and given genus and species names each year. At that rate, it will take somewhere between 555 and 5,555 years to identify them all. Obviously, biologists have a lot of work left to do.

Each year, scientists identify most of the “new species” from museum specimens that were found earlier but not studied carefully. Some species in the wild are going extinct, and some of the museum specimens may already have gone out of existence. Two species that are not endangered and that were discovered in the wild in 2010 are fish “as flat as a pancake.”

Scientists discovered two species of pancake batfish in the Gulf of Mexico near the Deepwater Horizon oil spill. They gave their discoveries the genus and species names Halieutichthys intermedius and Halieutichthys bispinosus. (The picture shows the similar Halieutichthys aculeatus.) You probably won’t remember their names (or even know to pronounce them), but they play a role in the balance of life in the ocean.

Pancake batfish live on the sandy bottom of the ocean between 148 and 2,690 feet (45-820 m) below the surface. They are flat, that’s why the name “pancake,” and they cover themselves with sand to wait for prey. They eat snails, worms, clams, scallops, and other crustaceans. Their maximum diameter is about 4 inches (10 cm), and they move over the ocean floor by hopping on their fins.

We have to wonder why there are so many species. God created living things with the ability to adapt to many environments, with each one filling a niche in the marvelous system that makes our lives possible. He even gave us strange fish as flat as a pancake. Furthermore, God created us with unquenchable curiosity and plenty of things to study. We believe that we can learn more about God as we explore the creation.

June 11, 2020June 8, 2020

We Could Not Survive Without Bacteria

We usually think of bacteria as agents of infectious disease–“germs.” However, many types of bacteria are helpful to us. The truth is, we could not survive without bacteria.

More bacterial cells are living on and in your body than there are human cells in your body. Your body has more bacterial cells than there are people in the whole world! Even more amazing, the total biomass of all bacteria in the world is greater than that of all plants and animals in the world!

Bacteria in our digestive system allow us to digest the food we eat. Good bacteria even help us fight off their less-friendly cousins. Researchers recently discovered that a human skin bacteria (Staphylococcus epidermidis) protects against skin cancer. Those bacteria produce a compound nicknamed 6-HAP, which stops DNA formation in cancer cells, but not in healthy cells. The researchers hope to use this information to develop new treatments for skin cancer.

Bacteria live everywhere in soil, water, hot springs, the deepest part of the oceans, deep in the Earth’s crust, and even in radioactive waste. Bacteria break down waste materials, including sewage and oil spills, to help keep our world clean. Industry uses bacteria to produce cheese, yogurt, ethanol, vitamins, antibiotics, and prescription drugs.

Before humans or any form of animal life could live on the Earth, there had to be a full complement of the right kinds of bacteria. An intricate system of checks and balances had to exist for things to stay in a favorable condition. We have often paid the price for upsetting the balance of the microscopic world.

Don’t forget that we could not survive without bacteria. They feed us, clean up after us, and even fight the diseases some of their cousins cause. They also show us the wisdom and intelligence of the Creator who made us, and those microbes we can’t see.

June 10, 2020June 8, 2020

Stink Bugs and Human Mistakes

Brown marmorated stink bugs (Halyomorpha halys) have become a significant pest in areas of the United States. They are native to Asia, but humans accidentally introduced them into the USA in 1998. Since they have no natural predators in North America, their numbers have grown dramatically. We can learn a lesson from stink bugs and human mistakes.

Brown marmorated stink bugs are commonly known to Americans simply as “stink bugs.” The “stink” is because they give off a foul smell when disturbed. “Marmorated” refers to their marbled coloration. You can distinguish brown marmorated stink bugs from similar-looking beetles by the alternating light and dark colors on their antennae and the edges of their abdomen.

When the weather turns cold, these pests find ways to get into homes through small openings, and there they hibernate. Sometimes the heat in the house causes them to become active and annoy the residents during the cold months. The real problem arises when warm weather arrives. That’s when they come out in force.

Halyomorpha halys is a major agricultural problem in some areas because they feed on a wide variety of fruit and vegetable crops. They pierce the plants or the fruits with their needle-like beaks and suck out the fluids. At the same time, they inject saliva, which causes shriveling and rotting.

In their native countries, there is a wasp that feeds on these stink bugs. The US Department of Agriculture has looked into importing those wasps into the United States to bring the bugs under control. The problem with that idea is the wasps might become new pests because they don’t have native predators. Traps remove only some of the bugs, and pesticides can have harmful side-effects. Pesticides are also not very effective because they stay on plant surfaces. The stink bugs don’t eat the surface of the plants. They pierce through the surface and drink the juices from inside. Perhaps the best hope, for now, is that some of our native birds and insects start to develop a taste for stink bugs as their population increases.

The Creator has given us an excellent and well-balanced system, but we humans have a knack for ruining God’s gifts. That has been true from the Garden of Eden until today. We see a connection between stink bugs and human mistakes.

June 6, 2020June 2, 2020

Pollination of an African Lily

Various types of plants are pollinated by bees, butterflies, hummingbirds, or bats. Non-flying mammals pollinate some plants. Rodents accomplish pollination of an African lily (Massonia depressa) that grows in a desert region of South Africa and Namibia.

Massonia depressa forms two huge leaves lying flat on the ground. Its flower in the center is at ground level within reach of the gerbils which pollinate it. Each evening the plant secretes globs of nectar as thick as jelly. The strong yeast-like scent attracts hairy-footed and short-eared gerbils that come at night to eat the nectar. The gerbils get covered with pollen as they spread the flowers open with their front legs and push their faces into the nectar.

Although the nectar is sugar (sucrose) jelly, it is 400 times as thick or viscous as an equivalent sugar solution. Rodents are the pollinators because the nectar is too thick for insects to drink. The gerbils lap it with their tongues. To accommodate the mammal pollinators, the flowers must be more sturdy and produce more pollen than plants pollinated by insects. Unlike the brightly colored flowers that attract flying pollinators in the daytime, these flowers are dull. The Massonia depressa produces seeds that are light enough that the wind scatters them.

We see evidence of design in the pollination of an African lily. This plant depends on a gerbil for reproduction, and the rodent depends on the plant for food. They need each other to survive. The plant is on the ground where the animal can easily reach it. It produces a fragrance and jelly to attract and feed the animal. Insects can’t eat the food or pollinate the plant. The lily and the rodent seem to be made for each other. Some suggest they evolved together by coincidence. We suggest this is another project by the Master Designer.

May 10, 2020May 9, 2020

No Substitute for Mothers

There is no substitute for mothers. At least that’s how it now stands under British law, and that’s the way God intended. Even a biological woman who identifies as a transgender man is still a “mother” and not a “father.”

Freddy McConnell is the current name of a British transgender journalist who was born as a female. She had a mastectomy and testosterone treatments and now identifies as a man. Freddy became pregnant by sperm donation, gave birth to a baby, and wanted to be listed as the “father” on the birth certificate. The High Court of Justice in London said, “No.” Freddy took the case to the Court of Appeal, and at the end of April 2020, the justices agreed with the High Court.

The British Children Act of 1989 requires that a mother be listed on the birth certificate. The justices said that according to the law, “a mother has automatic parental responsibility for a child from the moment of birth.” Further, they stated: “No-one else has that automatic parental responsibility…The fact of giving birth to a child has that effect as a matter of operation of law…From the moment of birth, someone must have parental responsibility for a newly born child…” In other words, there is no substitute for mothers.

Judge McFarlane of the High Court of Justice said: “It is now medically and legally possible for an individual, whose gender is recognized in law as male, to become pregnant and give birth to their child. Whilst that person’s gender is ‘male,’ their parental status, which derives from their biological role in giving birth, is that of ‘mother.’”

There is great confusion in society today concerning sexual orientation, genders, and gender roles. Recently I was required to complete a form that listed seven different options for “gender.”

I thank God that there are biological women who are willing to fill the role of being mothers. Women were designed for that role, and there is no substitute for mothers. For various reasons, many women today are single moms, and here are single fathers who must serve as “Mr. Mom.” The truth is that women can do many jobs as well as men, but no man can fill the full role as a mother. Today we want to thank and honor our mothers, especially Christian mothers, for filling that essential role.

April 19, 2020April 16, 2020

Communist Chinese Priority

While the world is trying to stamp out a contagious virus that originated from China, the Chinese Communist government is battling something else. The Communist Chinese priority is to stamp out Christianity.

In March, the Chinese government went on a campaign to remove crosses from churches in three eastern provinces. They brought in cranes to lift the crosses off the church steeples because, they said, religious symbols cannot be physically higher than the Chinese national flag. Government officials told the church leaders that the crosses “were too eye-catching” and might “attract people into the churches.”

Lincoln Christian University in Lincoln, Illinois, has a Chinese Institute. The director, Jian Zhu, said that China’s persecution of house churches has intensified. Chinese authorities ask people to spy on their neighbors and report churches meeting in homes. They also require teachers and students to sign statements denouncing Christianity.

Zhu said, “Cameras are all over to watch church and Christians go to Sunday services.” What do the Communists do with the data they gather concerning Christians? According to Zhu, they threaten families not to go to church, “or they will be punished or their relatives could be in trouble.”

As those of us in the United States are prevented from meeting together because of a virus, remember the Chinese Christians. The virus will soon be controlled, but the Communist Chinese priority to persecute Christians will probably only get worse.

Reporting by Fox News and The Christian Post.

April 12, 2020April 11, 2020

Positive Results from a Quarantined Easter

Today is a historic Resurrection Sunday when church congregations in the United States and much of the world are unable to assemble in one place. We pray that we will be able to get back together soon and that this will never happen again. However, there may be some positive results from a quarantined Easter.

In some countries, Christians meet in fear for their lives and physical well-being, not because of a virus, but because of the government. In the United States, we have never experienced that kind of persecution. Perhaps the present experience will give us a little more appreciation for the freedom we have. In the early days of the Church, persecution was common. Despite that, the Church grew.

Perhaps one of the positive results from a quarantined Easter is that we will think less about the commercialism of the day and concentrate on the real meaning. Instead of Easter trappings, we can spend more time contemplating Christ’s resurrection and what it means. Instead of Easter Sunday, we can think of it as Resurrection Sunday.

We can be thankful for modern electronic communication that allows us to stay in contact with fellow Christians as well as family and friends. Thanks to the internet, many churches are continuing their services while “social distancing.” In doing so, they are reaching and sharing the gospel with people who would never come to their building. Perhaps this will encourage us to use the internet to spread the gospel in more effective ways than ever. That could be another one of the positive results from a quarantined Easter.

Another positive result might be that it will help us appreciate the value of fellowship with other Christians. The Church not being able to meet in person can help us realize what a blessing it is to worship with our brothers and sisters. I hope that when we can get back together, we will appreciate the fellowship of other Christians as never before. Perhaps when this problem is over, we will find a new enthusiasm for “Not forsaking the assembling of ourselves together, as the manner of some is; but exhorting one another: and so much the more, as you see the day approaching” (Hebrews 10:25).

The truth is that Resurrection Sunday should not be a once-a-year event. Each week is a celebration of Christ’s resurrection. We encourage you to read our previous posts titled “Christ’s Resurrection Celebration” and “The Event that Changed the World.”