The Earth Archives - Page 24 of 46 - DOES GOD EXIST? TODAY

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.

May 31, 2020May 27, 2020

Measuring the Distance to Stars

Measuring the distance to stars is not as hard as you might think. As an earth science teacher at Riley High School in South Bend, Indiana, I enjoyed seeing a student’s eyes light up when they came to understand some scientific fact. They had thought it was beyond them, and suddenly it made sense. Knowing the distance to a star was always one of those facts. Let me show you how easy it is:

Look at a picture on the other side of the room. Hold your finger in front of your face and close one eye. Line up your finger and the object on the wall. Now close that eye and open the other eye, Does your finger appear to jump? If you drew a line between your eyes and extended a line from each eye to the picture, you would have a triangle. The apex angle at the picture is controlled by how far away it is from you. If you do the same experiment with an object that is closer, there will be a different angle.

The illustration on the right shows the Earth making its yearly orbit around the Sun. A line from the Earth to the Sun will establish a triangle. In six months, it will look like objects at the apex angle have moved. How much they will have moved depends on how far away they are. My classes do simulations of these measurements on the football field, and it becomes apparent how easy measuring the distance to stars can be.

The measurement unit astronomers use is based on how far away a star must be for the angle at the apex to be one arcsecond. We call that distance one parsec, and it is 3.26 light-years. If the parallax angle is .5 seconds of arc, the star must be 6.52 light-years away. The smaller the angle, the farther away the object is. The European Space Agency’s Gaia mission, which has been underway since 2013, can measure the parallax angle to a millionth of a second of arc. Objects that move such a small amount are tens of thousands of light-years away.

The cosmos is much larger than most of us can imagine. The light we see from some of those stars left the stars hundreds of thousands of years ago. Measuring the distance to stars gives new meaning to passages like Isaiah 40:22: “He stretched out the heavens as a curtain and spread them out as a tent to dwell in.”

If it has taken the light from the stars God created many tens of thousands of years to get here, it is evident that the creation didn’t happen a few thousand years ago. Verses describing the process of creation are untimed and undated. Let us not allow human traditions to challenge the integrity of the Bible. God created time, and He certainly is not limited by anything He created.

April 28, 2020April 27, 2020

Tools to Counteract Greenhouse Gases

People have paid much attention to the accumulation of greenhouse gases in our atmosphere because they play a significant role in global warming. The main culprit in the greenhouse gas list is carbon dioxide. Not only do we exhale this gas, but fires of all kinds produce it. With the recent major fires in Australia, there is even more concern about the amount of carbon dioxide in the atmosphere. But God has given the Earth some tools to counteract greenhouse gases.

The most efficient tool built into the Earth is a microscopic plant called a diatom. There are 12,000 species of diatoms in Earth’s lakes and oceans. Unlike phytoplankton, diatoms are encased in porous, intricately structured silica shells. Examined under a microscope, these silica shells are beautiful, and they are very resistant to change in shape. That means that the spaces between the shells can collect particulate material. So diatoms are used as filtering agents to filter water for swimming pools and as fillers for aerating soils in yards. The shells are used as diatomaceous earth, which is familiar to most of us, especially those who raise roses or tomatoes.

Diatoms can also absorb gases. In the oceans, they absorb massive amounts of carbon dioxide and lock it up in the ocean’s depths. Diatoms capture as much carbon dioxide as all the trees, grasses, and other land plants combined. The fancy latticework of the diatom is not just for humans to admire. Because of the twists and turns of their shells, the surface area of diatoms is much greater than that of smooth shells. The increased surface area maximizes photosynthesis and allows the diatoms greater energy for growth and reproduction.

The life expectancy of a diatom is about six days. Because the silicon is heavy, the diatom at death sinks to the ocean floor or lake, taking carbon with it. One solution to the buildup of carbon dioxide is to catalyze the growth of diatoms. Iron nutrients can do that, and seeding the oceans with iron might be a way to reduce the amount of carbon dioxide in the atmosphere.

Diatoms are one more example of the design built into Earth’s structure to allow the planet to exist over the long haul. While diatoms are not apparent to the human eye, they are tools to counteract greenhouse gases and a possible solution to a modern problem.

April 24, 2020April 23, 2020

Why Do Birds Fly North in Spring?

We all understand why birds of the Northern Hemisphere fly south in the fall. When the temperatures drop in Michigan, and the lakes are covered with ice, most birds have found a warmer place in the south. Michigan has many so-called “snowbirds” in the human population who leave us in November to go to Florida’s sunny shores. They come back in the spring to enjoy Michigan summers and because they have family here. The question is, why do birds fly north in spring? Couldn’t they save a lot of trouble by just staying in the south all year?

The answer to that question is food. The fact is that tropical areas simply don’t have enough insects to provide the protein that birds need to feed their chicks. When birds are in the south, they survive by eating berries, fruits, and nectar. None of those foods provide much protein. The time when birds return to the north coincides with the explosion of insects in the spring. They can enjoy less competition and longer days while dining on insects in the north.

The question remains as to how the birds know this? How do they know that they can benefit by traveling hundreds or thousands of miles in the spring? Why do the birds have the urge to fly north at the time that benefits them as well as the ecological systems they help to support? In other words, why do birds fly north in spring? The answer is that it’s built into their genes.

God’s view of Earth and the systems that make it work is far greater than ours. We are beginning to understand how many things, such as bird migration, must happen for the system of life to exist. It also speaks to us about how important it is that we take care of what God has given us.

Reference: Smithsonian magazine, May 2020, page 88.

April 21, 2020April 20, 2020

Water Cycle and Life

Many passages in the Bible seem to be of little significance, yet they are incredibly important. Here is one of them about the water cycle.

“All streams flow into the sea, yet the sea is never full. To the place the streams come from, there they return again.” Ecclesiastes 1:7.

It is believed that Solomon wrote those words in 977 BC. What did people understand about the hydrologic cycle, or water cycle, at that time? The answer, of course, is “very little.” Meteorologist Dr. Joseph Scott Greeson says about this passage, “Without using modern words – like ‘evaporation,’ ‘condensation,’ and ‘precipitation,’ this passage describes the results of those processes in these words… My twentieth-century scientific mind recognized that the writer of that passage must have had quite an understanding of the interaction between water on earth and water in the sky.”

There is a delicate balance of processes in the hydrologic cycle that allow us to have water even far from a lake or ocean. Many years ago, I had a friend who was involved in seeding clouds with silver iodide to stimulate them to produce rain. I knew that he was involved in this project and that he had many stories about how the seeding of clouds worked. I also knew he got out of that business, and I asked him why? His response was, “We were doing okay in getting rain started, but we were doing very poorly in knowing how to stop it.”

Global warming is bringing water to places that previously were deserts. We know that temperature controls how much water is lifted into the air by evaporation. A one-inch rainfall over a square mile of land involves the lifting of 72,483.84 tons of water. (Do the math. Water is 62.4 lbs per cubic foot. An inch is 1/12th of a foot, so the volume of water in a square mile of land would be 5280 feet/mile x 5280 x 1/12th or 2,323,200 cubic feet.) How many square miles of land receive an inch of rain in a typical spring storm? This is the start of the water cycle.

As the water flows into streams and rivers, it nourishes everything in its path, ultimately returning to the sea from which it evaporated. The system that powers the hydrologic cycle is massive, and all of life depends on it. God used the water cycle to impress upon Job that he “darkens counsel with words without knowledge” (Job 38:2). After talking about the creation, God takes the hydrologic cycle as the first evidence of His knowledge, design, and power. “Who provides a channel for the torrents of rain and a path for the storm to water a land where no man lives, a desert with no one in it to satisfy a desolate wasteland and make it sprout with grass. Does the rain have a father? Who fathers the drops of dew…” (See verses 22-30).

Be thankful for the rain that brings life to us and for the water cycle that God designed so that, if properly managed, we all have enough to drink and to grow our food.

— John N. Clayton ©

Greeson quote from Scientists Who Believe page 64, Moody Press ISBN 0-8024-7634-1.

April 20, 2020April 15, 2020

Deepwater Horizon Oil Spill Ten Years Later

On April 20 of 2010, the Deepwater Horizon oil spill began. By the time technicians could bring it under control, it had dumped 134,000,000 gallons of crude oil into the Gulf of Mexico over 87 days. Ten years after this disaster, we still see the effects in ways that no one would have expected. The entire issue of National Wildlife for February-March 2020 was devoted to new data on the long-range damage.

There is far more involved in this disaster than the removal of the obvious symptoms of the spill. Even on a commercial level, the damage is more than most people realize. Oyster production from Apalachicola to Galveston has collapsed. Louisiana has lost well over 50 million dollars in oyster harvest revenue. Scientists studying the oyster beds tell us that 8.3 billion oysters died as a result of the spill. A single oyster can filter up to 50 gallons of water a day. When explorers came to the Gulf of Mexico between 1600 and 1800, they described the oyster beds as “the Great Barrier Reef of the Americas,” nearly 100 miles long and several miles deep. Oyster shells are used to make mortar, build roadbeds, and to supplement chicken feed. The Deepwater Horizon oil spill has changed all of that.

The massive killing of wildlife has been well-publicized with pathetic pictures still showing up on the web. Does the killing of 30,000 loggerhead turtles, 17% of the Bryde’s whales, 800,000 coastal birds, a vast number of dolphins who are still having lung problems, and 20% of all corals in the area have any significance for those of us living far from the Gulf of Mexico? Most of us eat shrimp, crabs, lobsters, and fish. Much of the fishing industry in the Gulf has gone out of business, and those still existing are hard-pressed to find enough seafood to make a living. That results in higher prices and the risk of pollution effects on what we eat.

So why are we reminding our readers of the consequences of the Deepwater Horizon oil spill? Skeptics criticize any notion of God creating the Earth by saying that if there is a God, He didn’t do a very good job. Humans are threatened with shortages of food and water. In my mail yesterday, I received 16 different requests from organizations wanting financial help in feeding and helping hungry children and starving families. (By the way, all of them were faith-based). Why are there shortages? Human greed, selfishness, ignorance, desire for power, and refusal to live as God told us to has resulted in destructive wars, mismanagement of resources, waste of incredible proportions, and foolish and irresponsible management of resources.

When God created the Earth, He provided for an abundance of food and water. God also told us how to live. Read Matthew 25:34-40 and see how Christ portrayed Christian living. The Deepwater Horizon oil spill is just one human failure, but look at what it has done to innocent humans. We are just beginning to understand the biological damage and effects. We cannot blame God for what humans have done. God has given us all we need and the means of taking care of it. Christians must lead the way in the responsible use of God’s gifts.

April 18, 2020January 4, 2023

Mesozoic Era Small Animals

What most people know about the dinosaurs is what they have seen in a movie or a museum. The emphasis is always on the massive size of these ancient animals. Those of us with a background in paleontology are more interested in the ecosystem in which they lived. The Mesozoic era was a time when the Earth was very different from what it is today. It appears that the oxygen content of the atmosphere was higher, and the temperature was much warmer. The plants and animals living at that time enjoyed a balanced ecosystem that left a legacy that has allowed us to live comfortably on this planet.

The natural resources humans have depended on for our entire history were produced during the Mesozoic era. These include coal, oil, and a wide variety of soils that allow our modern plants to exist. From a biblical standpoint, this was a part of Genesis 1:1 when God prepared the Earth for what was to follow. For more on this, see “God’s Revelation in His Rocks and His Word” on our doesgodexist.org website. (You can purchase printed copies HERE.)

What many people don’t realize is that while the giant dinosaurs were an essential part of the Mesozoic era ecosystem, small creatures were of equal importance. Insects were a significant part of the system, and fossil remains of all kinds of arthropods are abundant in the fossil record. As we all know, insects can reproduce in destructive numbers. Just as there were meat-eating dinosaurs to keep the plant-eaters from destroying all the vegetation, there were insect-eaters to control the insect populations. We have insect swarms like the locusts that are causing massive problems in Africa today because humans are removing the natural controllers of insect populations.

The recent discovery of a creature named Oculudentavis khaungraae has shown us a dinosaur the size of a bee hummingbird, the smallest known modern bird. This dinosaur’s skull was half an inch from front to back, and it had a mouth full of teeth. It was ideally suited for eating insects of all kinds and sizes and was undoubtedly a vital part of the ecosystem during the Mesozoic era of the dinosaurs. God has always used one existence to prepare for another, and the preparation of the early Earth for humans was a long and highly complex process.

Our existence on Earth is also a preparation for a far better one. Continuing to study God’s creation and His Word helps us prepare for that time when we will exist outside of space-time. Read about it in Revelation 22:1–5.

Reference: Science News April 11, 2020, page 4.

April 15, 2020April 15, 2020

Amazing Spring Timing

One of the things you hear people in our part of Michigan say is, “If you don’t like our weather, hang on for a few minutes, and it will change.” We have had a strange winter season. We had brutal temperatures, wind, and snow in early December, leading all of us to think it was going to be a terrible winter. As we got near the holidays, the weather became unseasonably warm. We waited anxiously for another blizzard like the ones we usually have after a warm spell in winter. It never happened. Now we see the amazing spring timing.

It was so warm in the winter that I worried about the glad bulbs I had dug up. I put them in buckets covered with moist newspaper and stored them in the garage for spring replanting. I was afraid they would leaf-out responding to temperature, but they seemed to be okay and had not budded out at all. The weather did turn cold, but not the sub-zero stuff we usually have. Now we are in mid-April and, even though it snowed two days ago (and is snowing again today), winter is essentially over, and I used my snowblower only once.

So now I just got the glad bulbs out of the bucket in the garage. They have been in an insulated, dark garage, covered with a foot of newspapers since I dug them up in October. Every single bulb has a green shoot coming out. They are ready to be planted. How did they know it was time? The temperature in the garage didn’t change. No sunlight got into the bucket.

I have always assumed that my daffodils, which are blooming like crazy, used the presence of direct sunlight and perhaps temperature to know when to come up and prepare to boom. The glads had none of those indicators available to them. I am not suggesting that the amazing spring timing is some kind of mystic intelligence that tells the glads it is time to go. Whether it is ultraviolet light or infrared that signals the glads, it is a highly well-designed system.

Amazing spring timing is fascinating. The hummingbirds seem to know when to come north. The sandhill cranes are circling overhead as they fly ahead of the weather systems that might otherwise threaten them. The baby deer are around in such numbers that no amount of predation threatens to wipe out the deer population. That is thanks to the synchronized births that seem to take place in almost all wild ungulates.

When God decided to challenge Job, He used the things that show design wisdom in His creation to convict Job of his ignorance. Job 38:39- 41:34 finds God challenging Job to look around and see God’s wisdom and power at work. There is no better time to see that than in the amazing spring timing. Let us all step away from the ills of humanity and look at what God has done.

April 9, 2020April 8, 2020

God’s Seasons of Hope

We have mentioned before that God did not create the coronavirus that is causing so much pain to people worldwide. In this devastating epidemic, many of us have lost someone close to us. No one is minimizing the damage of COVID-19, but human greed and mismanagement have been the primary cause of it, not God. However, God’s seasons of hope can bring us through times like this.

One blessing that we should all be thankful for is the time of year when this pandemic has struck. It is now April. Geese are flying overhead. My daffodils are ready to bloom. A baby deer crossed my driveway this morning. The yard is greening up, and I will be outside rotor-tilling the garden and spreading fertilizer later this week. Experts say that viruses don’t like the ultraviolet light and high temperatures of the Sun, and the forecast is for clear skies and rising temperatures.

When Paul was teaching in Iconium (Acts 14), he encouraged his listeners: “Turn from these vanities to the living God who made heaven, and earth, and the sea and all the things that are in them. In the past God allowed all nations to walk in their town ways, but he did not leave himself without a witness, in that he did good, and gave us rain from heaven, and fruitful seasons, filling our hearts with food and gladness.” (Verses 15-18).

The rain has come and melted the last of the snow. There is plenty of food, and congregations who operate food banks are meeting the needs of people in their areas. Before long, there will be strawberries, asparagus, greens, and mushrooms available outside our doors. We can once again fill our hearts with food and gladness.

Let us find encouragement in Paul’s words as we enjoy God’s seasons of hope and look forward to a future free from this virus threat.