Exoplanets and Life in the Universe

Exoplanets and Life in the Universe
Artist’s Conception of Alien Planets

“Star Wars,” “Star Trek,” and other movies and television shows featuring space travel and alien life have fascinated people for decades. Yesterday, we examined how intergalactic travel would not be anything like what the movies depict. Other galaxies are many light-years away, and the laws of physics will not allow us to travel even one percent of light speed. Nevertheless, people are still concerned about exoplanets and life in the universe.

Regardless of whether we can go to other galaxies far, far away, or even solar systems within our own galaxy, astronomers are searching for “exoplanets.” An exoplanet is any planet outside of our solar system, and scientists are trying to find one that could support life. (We have dealt before with the question of why the universe is so large.)

Scientists look for planets orbiting stars that are so far away we can’t even see the stars with our unaided eyes. How is it possible to find planets that we can’t see, even with our best telescopes? They use at least three methods. When a planet transits in front of a star, it blocks a small amount of the star’s light. Very sensitive instruments detect that change. A star may wobble slightly because of orbiting planets, causing a detectable color shift due to the Doppler effect. Finally, astronomers sometimes use gravitational lensing to detect an orbiting planet if it causes bending of the light from a distant star.

Those are some methods astronomers use, hoping to find exoplanets and life elsewhere in the universe. However, unlike in the movies, the stars and their planets are so far away that we could never go there. Even sending a radio signal to those possible planets would take thousands or even millions of years, traveling at the speed of light. Getting a message back would take an equal amount of time.

There are so many requirements for life that the chances of any of those planets supporting advanced life would be almost infinitely small. If there is some form of life on any of them, how will we ever know? God could have created life elsewhere in the universe, but we have no evidence one way or the other. The Bible doesn’t tell us, and science can only look and hope for a clue. Whether or not life exists on other planets or moons, we believe the fine-tuning of Earth for life is evidence for God’s existence.

— Roland Earnst © 2021

Space-Travel Adventure Movies

Space-Travel Adventure Movies

Space-travel adventure movies and novels may be fascinating, but they are not very realistic. Traveling through space poses many hazards to humans beyond equipment failures. There is also the danger of radiation exposure when a person leaves Earth’s protective atmosphere and magnetic field. And perhaps the most significant of all is the issue of time.

Travel to the Moon will take days. Traveling to Mars will take months. A space-travel adventure to any planet outside of our solar system would take multiple lifetimes. Astronomers have toyed with the idea of traveling to a planet orbiting Proxima Centauri, which is the closest star to us. That planet, Proxima Centauri b, is 42 light-years from Earth. Unless someone could find a way to travel through a wormhole, if such a thing exists, it would take 6,300 years to make the journey with present technology.

We are considering the present technology to be the speed of the Parker Solar Probe launched in 2018, which is 430,000 miles (690,000 km) per hour, or about .064 percent of light speed. According to Astronomer Dr. Hugh Ross, the laws of physics would limit the top speed of a spaceship to about one percent of light speed, but we are far from achieving that. Also, a factor to consider would be a way to slow down on approaching the destination to avoid going right past it or crashing into it.

So, if we sent out a space-travel adventure crew to Proxima Centauri b, it would take many generations to arrive. That means people would have to reproduce many times on the way. Factors to be considered would have to include having enough crew members and genetic diversity to have a healthy crew on arrival at the destination. Using computer modeling, scientists have determined that the minimum team required would be 49 males and 49 females. Ninety-eight crew members would need a large ship. In addition, there would have to be facilities for recreation and to grow food.

The vast majority of the travelers on this spacecraft would never see Earth or the destination planet. Exposure of many generations to the radiation of outer space could cause physical or mental deformities that we can’t imagine. What if this small community just couldn’t get along together in cramped quarters? Avoiding a mutiny or rebellion would be a significant challenge. Keeping hundreds of generations focused on the same mission would be impossible. Putting the crew into a cryogenic state for thousands of years to avoid the multi-generation problem does not seem to be realistic. (Remember the movie “2001: A Space Odyssey?”) 

Producing food and recycling water would be essential for such a space-travel adventure. However, taking and preserving all equipment and materials needed for the crew to survive in a hostile environment on arrival at the alien planet would be impossible to plan or predict.

We may enjoy science fiction such as “Star Trek,” “Star Wars,” or “Lost in Space,” but none of them are even remotely realistic. God has given us a beautiful planet with everything we need to survive and thrive. What we must do is take care of it. That means using resources wisely, protecting the environment, and protecting the animals that share the planet with us. Stewardship of God’s gifts was a command from the beginning. (See Genesis 2:15.)

— Roland Earnst © 2021

References: TechnogyReview.com, Space.com, and Why the Universe is the Way it Is by Hugh Ross.

Life After Death – A Concept Common to Humans

Life After Death – A Concept Common to Humans

Humans from the earliest times have believed in life after death. One of the unique human properties is that we alone believe in a continued existence when our physical life has ended. Most animals simply abandon a dead member of their species. There has been some attempt to claim that elephants, whales, and apes exhibit mourning and stay with the body of a deceased member of their group. However, many researchers agree that interpreting their actions as mourning is not justified. Humans tend to view animal behavior in our image, a process known as anthropomorphism.

As science discovers more fossils of ancient humans, the pattern of preparing a deceased member of the group for another existence becomes apparent. Anthropologists are interested in a South African cave system burial site. There they have found 28 skull fragments and six teeth of what appears to be a child with human characteristics 35 feet (10.6 m) below ground. The bones do not seem to have been washed into the cave or dragged in by scavengers or predators. Researchers gave the specimen the scientific identity of Homo naledi.

Lee Berger of the University of Witwatersrand in Johannesburg reports that this fossil shows strong evidence of a “ritualized body disposal” of the specimen, which they nicknamed “Leti.” Ancient burial sites have almost always indicated that others prepared the deceased for life after death. Sometimes the body is mummified, and sometimes jewelry or weapons are left with the body. There are even cases where an animal or mate was buried with the deceased.

There is a scant reference to life after death in the Old Testament. In 2 Samuel 12:23, David expressed faith that he would see his deceased baby in the future. Job said that after his body had been destroyed, he knew he would see God (Job 19:25-27). Daniel saw a “man clothed in linen” who told him he would “rest” and then “at the end of the days” he would rise and “receive his allotted inheritance” (Daniel 12:13).

The New Testament is full of references to life after death, especially in the teachings of Jesus Christ. The war between good and evil is rooted in the understanding that death is a product of this physical world and Christ has conquered it. (See 2 Timothy 1:10; Revelation 20:14 and 21:4.)

Human spiritual nature is unique because God created us in His image. Our soul allows us to think beyond this life and anticipate an eternal, time-independent relationship with God. That concept has been present in humans from the very beginning and is still present today. Our spiritual nature allows us to express ourselves in art, music, and worship. It also gives us the hope of eternal life in an existence beyond anything this world has to offer.

— John N. Clayton © 2021

Reference: Science News 12/4/21, page 15.

Elephant Trunks as a Model for Robots

Elephant Trunks as a Model for Robots

New research shows that using elephant trunks as a model for robots, engineer-designers may soon create machines capable of doing things that no current robot can do. For example, the elephant trunk has 40,000 muscles that work together to allow the animal to pick up a single leaf or lift and move a large log easily.

Researchers used motion capture technology similar to that used to create movies where the movement of animated characters is mapped to the motions of real actors in a studio. Studying elephant trunk movements by this method allowed the researchers to carefully examine the myriad ways an elephant uses its trunk.

The elephant’s trunk has an infinite number of degrees of freedom. We can see a similar property in a limited way in the human tongue. Like the elephant’s trunk, our tongues have no bones, and some of us can curl, twist, and contort them in various ways. The ability to speak requires complex tongue movements.

Using elephant trunks as a model for robots is a real challenge to engineers. Designing a robotic arm with complex movements and strength is an important goal. Looking at the elephant’s trunk design, it does not seem possible that this could be a product of chance. Yet, the elephant’s survival is only possible because of this highly complex appendage.

Some animals have tongues that can do interesting things, but the elephant trunk is unique. By using elephant trunks as a model for robots, we can gain some essential insight into making a robot that can do the things we can do with our hands. It becomes clear that all of nature shows God’s handiwork and teaches us important lessons.

— John N. Clayton © 2021

References: Scientific American, December 2021 (page 18), and the journal Current Biology.

Egg Shape and the “Egg-quation”

Egg Shape and the “Egg-quation”

When you look at the eggs of different birds, you will notice that they have different shapes. Some are round like the eggs of most owls, and some are elliptical like the eggs of an emu. Others are oval, such as chicken eggs, or pear-shaped like the eggs of a penguin. Why is egg shape important? There has been a need to know how to pack eggs to support them to prevent cracking. This is not just important for people who raise chickens and sell eggs at your local grocery store but also for conservationists protecting birds in the wild.

This need to understand egg shapes led to studies by scientists at Kent University in England. They came up with a mathematical formula with four essential inputs: 1-egg length, 2-maximum breadth, 3-diameter where the pointed end terminates, and 4-location of the egg’s maximum diameter in relation to the midpoint of its length. The problem was that the earlier mathematical analysis didn’t work on pear-shaped eggs, but the formula works for any egg shape by adding the fourth variable.

This is a classic example of two things. One is that research that may seem pointless to a casual observer frequently provides needed information. So, for example, people wanting to transport eggs, incubate eggs efficiently, and restore bird populations in areas where they have become extinct will use this equation.

A second thing this research shows is the incredible design of the egg. An engineering equation allows the design of precise egg shape construction to fit all environments. This is a complex engineering problem with practical applications, and it shows that even the ordinary egg speaks of the Creator’s wisdom and skill in providing for His creatures.

— John N. Clayton © 2021

References: Science News 12/4/21 page 11. Scientific report in the Annals of the New York Academy of Sciences.

The Wall Hezekiah Built Is Uncovered

The Wall Hezekiah Built Is Uncovered
A stone wall of similar construction to Hezekiah’s wall.

The winter 2021 issue of Biblical Archaeology Review contains an announcement by the Israel Antiquities Authority of what they call a “groundbreaking discovery.” Archaeologists have uncovered the wall Hezekiah built around 701 B.C. Isaiah 22:9-10 describes the wall’s construction, and 2 Kings 25:10 tells of its destruction during the Babylonian siege of Jerusalem about a century later. In addition to the wall itself, the archaeologists found various objects, including seals, along the wall’s base to confirm its date.

The archaeologists say that the wall was 10 feet (3 m) tall and more than 15 feet (4.5 m) wide. It was built along the slopes of the steep-sided Kidron Valley, making an imposing barrier on that side of Jerusalem. Researchers previously found other sections of the wall Hezekiah built, but this find connects those sections and provides more verification of the biblical account. The same issue carries a report of finding evidence of the powerful earthquake that occurred during the reign of King Uzziah and is described in Amos 1:1 and Zechariah 14:5.

Many people don’t realize that archaeological work in the Middle East is in its infancy. Hundreds of identified sites have not been excavated because of the expense involved. In addition, the field of archaeology is complicated by politics, nationalism, funding, and the prejudice of some of the people directing the digs and the museums displaying the artifacts.

To help people learn more about biblical archaeology, we have produced a video series titled “Beyond Reasonable Doubt” with John Cooper. The videos are available for free viewing on doesgodexist.tv, or you can purchase the series on DVDs. The series is an introductory presentation of positive evidence for the reliability of the Bible and is recommended for class use and individual viewing.

— John N. Clayton © 2021

Reference: The magazine Biblical Archaeology Review has a section called “Strata” in which they announce new discoveries made in the field.

Drug Safe-Havens Don’t Work

Drug Safe-Havens Don't Work

On December 1, 2021, the United States joined Canada, Australia, and Europe in allowing drug safe-havens for people who wish to use heroin and other narcotics. Mayor Bill de Blasio of New York City announced that having monitored facilities where someone watches for overdoses will save lives. The first facility in New York was set to open immediately.

Federal laws ban operating a place for narcotic use, but those laws have been poorly enforced. It is interesting that there is no evidence that these facilities provide help for those who are addicted. There have been negative results in other places where governments have tried legalization. Other moral issues such as prostitution and sexual abuse become part of the scene.

Setting up drug safe-havens, making it easier for people to use narcotics, is sanctioning people to harm themselves. Even though they may not die immediately from drug usage, the long-term result is not good. Should the government provide a way for people to become addicted? The news releases on the New York City plan do not say that drugs will be provided. If that is true, drug dealing and the problem of contaminated drugs will continue.

Licensing sin has never worked, and neither will drug safe-havens. Instead, the legalization of gambling has increased crime, prostitution, economic damage, and family breakdown. As the world turns away from God and denigrates the teachings of Jesus, we are not surprised that politicians will seek to condone the sin industries and tax them.

In 1 Thessalonians 5:21-22, Paul admonishes Christians to “Bring everything to the test and cling to that which is good and rejecting all that has a look of evil about it.” Therefore, let us oppose the movement of our nation toward embracing the sin industry as it offers an alternative to the teachings of Jesus Christ.

— John N. Clayton © 2021

Reference: Associated Press for 12/1/21.

Some Good News about Diseases

Some Good News about Diseases

Recent data on disease brings some good news. Cancer has been a major challenge for medical science, but survival rates for cancer have been increasing. Between 1975 and 2016, the percentage of people living for five years after a cancer diagnosis has risen from 50% to 68%. In 1971. three million people in the United States had survived cancer, or 1.5% of the population. In 2019, that number was 16.9 million, 5% of the population. Human pollution and poor life choices cause many cancers, but God has given medical science the ability to combat this dreaded disease.

Also, some good news is what vaccines have done for survival. A better understanding of God’s design of the human body has allowed us to combat diseases with vaccines. Before the vaccine for smallpox, 48,164 people contracted the disease in the United States. Since the vaccine’s development, that number has dropped to zero as of 1998. Diphtheria brought severe illness and usually death to 175,885 people in the U.S. Since the vaccine, there has been one case. Polio affected 16,316 people in the U.S. before the vaccine. Since then, there have been no cases. Measles was a significant cause of birth defects and other health issues and affected 503,282 people in the U.S. After the vaccine, there have been 89 cases.

We thank God for some good news regarding these human afflictions. The more we learn about diseases, the more we understand that they are not “God caused” but often result from human actions and carelessness. It is a tragedy that some people refuse what God has given us to prevent illness and death.

— John N. Clayton © 2021

References: Science News (page 22), November 6, 2021 and AARP Bulletin for November 2021 (pages 12-14).

Corpse Plant Design and Pollination

Corpse Plant Design and Pollination
Corpse Plant in Bloom at the University of Bonn Botanical Garden

The design of plants is so complex and precise that it speaks volumes about the design built into all of life. For example, on November 3, 2021, the San Diego Botanic Gardens in Encinitas had a public showing of the bloom of the Amorphophallus titanum plant, which attracted more than 5,000 people. This strange plant is called the corpse plant.

Amorphophallus titanum is an endangered plant endemic to Sumatra. People call it the corpse plant because the blossom smells like a rotting corpse. The plant requires growth for five to ten years before blooming for the first time. After that, it may bloom once every two to ten years. The bloom lasts for 24 to 48 hours in which it sends out the odor to attract carrion beetles and flesh flies as pollinators.

The flower, or spathe, of the corpse plant does more than just send out a smell to attract pollinators. The inside is a deep red color with furrows that give it the appearance of raw meat. Also, when blooming, it generates heat that brings it to human body temperature. As a result, the carrion beetles and flesh flies, which are programmed to be attracted to meat, find it irresistible.

Many insects and animals have a symbiotic relationship with certain plants. Sometimes a plant attracts an insect or animal for food or shelter, and the insect or animal provides pollination for the plant. Analysis of the powerful odor shows it involves at least seven chemicals that create foul smells we are familiar with, from rotting fish to feces. It is no accident that this plant has all of the right chemicals and physical features to attract the available pollinators in its native habitat.

The needs of every plant and animal are carefully provided for their survival. The evidence is apparent as Romans 1:20 tells us we can know there is a God through the things He has made. The corpse plant, carrion beetles, and flesh flies demonstrate the truth of that statement.

— John N. Clayton © 2021

Reference: AP Release 11/3/21.

You can watch a time-lapse video of a corpse plant blooming at UC Botanical Garden in Berkeley HERE.

King of the Serengeti is Not the Lion

King of the Serengeti is Not the Lion

In a December 2021 National Geographic article, Peter Gwin portrays the wildebeest as the “Unlikely King of the Serengeti.” That title suggests that the animal and its role are too complex for us to comprehend. In the case of the wildebeest, both their physical design and their incredible mass migrations of more than 1.3 million animals have drawn the attention of scientists.

The wildebeest is an animal that seems to have been fashioned from the parts of other animals. They have a head like a warthog, a neck that looks like an American buffalo, stripes like a zebra, and the tail of a giraffe. Wildebeest are members of the antelope family, but they have small horns, shaggy beards, big humps, and small legs. Their three-week birthing period in January allows them to produce 500,000 calves at the rate of about 24,000 per day. Despite their clumsy appearance, a wildebeest can run 50 miles (80 km) per hour and annually migrate 1,750 miles (2,816 km). They are the largest animals to engage in such a long migratory journey.

In their migration, wildebeest cross rivers in massive numbers. Tourists come to watch these crossings where crocodiles feed on many of the animals. The king of the Serengeti is also a food source for lions, hyenas, cheetahs, and leopards. New studies of the wildebeest and the Serengeti show the complex design of these animals and their environment.

Wildebeest migration follows the rain. As they travel through Kenya and Tanzania, wildebeest can sense where it is raining, and they follow the precipitation. By eating the new grass that the rain produces, wildebeest prevent the grass from growing tall enough for wildfires to develop. The lack of fires allows forests to grow, thus allowing more insects for birds to eat and more leaves to feed the herbivores. That sustains the elephant, giraffe, zebra populations.

It’s easy to see why the king of the Serengeti is not the lion but the wildebeest. It is a keystone species that, by its design, feeds many life forms and, by mass migrations, allows a stable ecology in the Serengeti. This is an example of God’s design of an animal that is only now being understood and appreciated. Everywhere we look, we see that a wonder-working hand has gone before.

— John N. Clayton © 2021

References: The National Geographic issue for December of 2021 is one of the most interesting issues that popular magazine has produced. It is connected to a Disney program that will be streamed starting on December 8. The program titled “Welcome to Earth” will be hosted by actor Will Smith and feature many different animals and plants, including the wildebeest.