The What and Why of JWST

The What and Why of JWST
James Webb Space Telescope with its gold-plated mirrors

If all goes as planned, Christmas Eve will see the launch of the James Webb Space Telescope (JWST or WEBB). It has been a long time in the making with many delays and cost overruns, but it seems that the time has finally arrived. The JWST was supposed to launch in 2007 at the cost of $1 billion. Now it is launching at the end of 2021, and the price has escalated to $10 billion. Let’s examine the what and why of JWST.

First, the what of JWST. The James Webb Space Telescope is a successor to the Hubble Space Telescope (HST or Hubble). It is intended to be a space observatory with capabilities far beyond HST, which was launched in 1990. NASA designed the JWST, and Northrop Grumman built it in California. The European Space Agency will launch it from their launch site in French Guiana, South America.

The why of JWST is that scientists expect it to revolutionize astronomy and expand our knowledge of the universe. Science and technology have made great strides since Hubble was launched and even since astronauts repaired and updated it, most recently in 2009. JWST will observe the universe in infrared light, while HST is limited to visible light. Because galaxies farther away are retreating at increasing speeds, their light shifts toward the red or infrared spectrum. Scientists hope that JWST can observe farther back toward the cosmic creation event known as the big bang. Because of that, astronomers expect to learn more about the formation of stars and galaxies.

Earth-based telescopes must always observe the universe through our atmosphere with particles, pollution, and moisture. That limits their ability to obtain sharp, precise images. Space-based telescopes, like Hubble, eliminate that problem. Webb will give much sharper images with its mirror made of beryllium coated with gold and a diameter more than 2.5 times as wide as Hubble’s.

JWST will locate itself at the Lagrange point where the gravity of Earth and Sun balance each other. That is 930,000 miles (1.5 million km) from Earth. Repairs or upgrades such as those performed on Hubble will not be possible at that distance. That means everything will have to perform flawlessly when the telescope reaches its destination. Deploying the mirror, sun-shield, super-cooling equipment, and telemetry equipment will take a month, which NASA has called “29 days on the edge.”

Another thing that astronomers hope to study with JWST is dark matter, the stuff that’s out there but cannot be seen or detected by any means science has discovered. The way they know dark matter must be there is that it holds the galaxies together. Physics cannot explain why spinning, spiral galaxies, such as the Milky Way, do not fly apart because of centrifugal force. Astronomers hope that JWST’s high-definition images can at least show us where the dark matter is by what they call “gravitational lensing.”

So that is the what and why of JWST. We are excited to see the new images of the universe the James Webb Space Telescope will capture. As we learn about the formation of stars and galaxies, it opens the door to knowledge of God’s handiwork, allowing us to say, “So that’s how God did it!

— Roland Earnst © 2021

Reference: You can find much more about the James Webb Space Telescope at NASA’s fact sheet at THIS LINK.

Benefits and Challenges of Squirrels

Benefits and Challenges of Squirrels

We find it interesting to consider the benefits and challenges of squirrels. Now that most of our trees in this area have shed their leaves, we can see nests that are different from bird nests high in our trees. They are round and are not open on the top. The nest design programmed into the squirrel DNA has the structural integrity to withstand high winds, heavy rain or snow, and even the invasion of most predators.

Squirrels begin by weaving twigs to make a floor or platform for the nest, usually in a fork high in the tree. Next, they place damp leaves or moss on this floor and weave it around the base, making a spherical nest. Then they stuff leaves and twigs into the sphere, leaving an inner cavity which they line with shredded bark and leaves. Squirrels usually complete their construction in the fall, although they may start as early as June. They are typically solitary but may share a nest for warmth in the coldest winter months or for mating and raising their babies.

Squirrels may also take advantage of any shelter they can find. For example, they can use an old woodpecker nest in a hollow tree and line it with moss and leaves. Unfortunately, squirrels will also take advantage of human structures to nest. For example, they may exploit an abandoned car, a hole in a roof, a woodpile, or an unused boat or camper. Being aware of the abilities of squirrels gives us a way to avoid damage or problems they might cause.

Squirrels are intelligent and very athletic animals. Those of us who have bird feeders can tell many stories of how squirrels evaded our best efforts to keep them from eating the birdseed. The main diet of squirrels is nuts and seeds, but they also eat insects, grubs, and beetles. They frequently bury nuts for later use and fail to dig up a percentage of them which then grow into trees. Oak trees planted by squirrels are a significant part of reforestation in northern areas.

As we think about the benefits and challenges of squirrels, remember that they are wild animals that can spread disease and insect bites from fleas, chiggers, and tics. Despite the challenges squirrels present, these small animals are designed to give us more benefits than problems. Enjoy the creatures God has given us to serve a purpose on this planet.

— John N. Clayton © 2021

Joseph is the Unsung Hero of the Birth of Jesus

Joseph is the Unsung Hero of the Birth of Jesus

Mary receives most of the attention as the mother, but Joseph is the unsung hero of the birth of Jesus. Of course, the virgin birth was a miracle, but how would most men have responded to the situation in which Joseph found himself?

Mary and Joseph were Jews following Jewish complex and time-consuming protocol for marriage. In the presence of two witnesses, the groom would make a verbal declaration to the bride accompanied by a gift. The couple was then legally married, and to void the marriage required a divorce. However, the couple did not live together for a year as the bride continued living in her father’s house. When the year ended, the groom would take the bride to his family home, and the couple would live together as husband and wife. A rabbi told me the purpose of this procedure was to make sure the woman was not pregnant. Matthew 25:1-6 describes this wedding custom.

The problem, in this case, is that Mary fails the test. She was showing a baby bump and “found to be with child.” As a result, Jesus would be considered an illegitimate child, and that stigma would be used against him. In John 8:39-41, we see the enemies of Jesus protesting that they were not illegitimate. Joseph is between a rock and a hard place. He loves Mary, but Jewish law urges him to divorce her. Furthermore, the public disclosure of this situation could mean that she could be stoned.

At this point, Joseph has a dream (Matthew 1:20-25) in which an angel tells him not to be afraid to take Mary as his wife. Afraid of what? Afraid of breaking the Jewish law. I think most men would have assumed it was something they ate and would not have been willing to subject themselves to the ridicule and abuse that would undoubtedly come from the situation. Interestingly, the angel addresses Joseph as “Joseph, son of David.” This is the only time that title is given to anyone in the New Testament except Jesus himself. Joseph is the unsung hero of the birth of Jesus.

After the birth of Jesus, Joseph has another dream in which an angel tells him to take Mary and Jesus to Egypt. He immediately does it in the middle of the night (Matthew 2:13-14). This poor carpenter is told to go to a foreign country with no support. (Perhaps this is where the gift of gold from the magi came in handy.) Joseph is a man of incredible faith and courage. He ends up in Nazareth because of another dream and fades into the background as Jesus and Mary take over the historical narrative.

Joseph is the unsung hero of the birth of Jesus because he sets an example for us all. His love for Mary, his obedience to God’s commands and leadership, and his willingness to serve sacrificially are frequently overlooked. He teaches us that we can serve God in many ways. Joseph’s humility, servant attitude, and obedience set a standard for us to follow.

— John N. Clayton © 2021

Our Essential Moon and Life on Earth

Our Essential Moon and Life on Earth

For most people, our Moon is just a light at night. The fact is that our essential moon is part of Earth’s fitness for life. Any change in the size, distance, or obit of the Moon would be catastrophic for life on Earth.

Having just one moon of significant size is a very unusual situation. Venus has no moons, and the two tiny moons of Mars are apparently captured asteroids. Jupiter, Saturn, and Uranus each have multiple moons, many of which are of significant size. However, a single large moon is unique to planet Earth.

So what does our essential Moon do for us? Because of its size, it has a significant gravitational pull on the Earth. That pull is strong enough to cause our planet to flex as the Moon orbits it. That creates a disturbance in geologic activity on Earth when the Moon is over an area of unstable rock.

The Moon’s pull on Earth’s waters is more significant. The Moon’s pull stirs the oceans much like a person might stir a large saucepan of soup. Our Moon causes many ocean currents and tides, even in large lakes. Ocean currents not only move nutrients around but transport heat as well. For example, the Gulf Stream is critical to marine life along the east coast of North America and controls temperatures along the entire coast.

The Moon’s gravitational pull is closely related to its mass. Therefore, a larger moon would cause massive flooding along the edges of continents. If it were smaller, the tides and currents would not be large enough to clean the estuaries or warm the landmasses, and many marine lifeforms would not survive.

If we had more than one moon, they would affect each other. There are rock tides causing moonquakes on the Moon due to the pull of Earth’s gravity. A second moon would amplify this effect, and if the two moons collided, the fragments would threaten life on Earth. Every total solar eclipse reminds us how precise the Moon’s size is. It can exactly cover our view of the Sun, allowing us to see and study the Sun’s corona.

Most of us overlook how our essential Moon’s size, mass, distance, and orbit shape seem to be carefully designed. Attributing that precision to blind chance requires faith as great as attributing life to chance. We would suggest that the Creator used his wisdom, described beautifully in Proverbs 8:1-5 and 22-32, to design an Earth/Moon system that allows life to exist and prosper on planet Earth.

— John N. Clayton © 2021

Reference: Smithsonian magazine, December 2021, page 88.

Life Issues from Beginning to End

Life Issues from Beginning to End

The media have recently reported on several life issues from beginning to end. Here are some examples:

The German Euthanasia Association has announced that those seeking euthanasia must produce proof of COVID vaccination
to legally end their lives. This is apparently to protect healthcare workers.

In Poland, the government has passed a law requiring doctors to report all pregnancies and miscarriages to a government database. The apparent reason for this is to make sure that all pregnancies end with a birth. Unfortunately, Poland has a shortage of workers, and this seems to be the government’s solution to the issue.

Research has shown that women who use marijuana during pregnancy are more than twice as likely to have aggressive, hyperactive children with heart rate and immunity issues.

Babies have a fragrance that comes from an organic compound called hexadecanal. It is found in human skin but is abundant in a baby’s scalp. Research shows that females exposed to the fragrance become more aggressive and strong defenders of their babies. On the other hand, men exposed to it become more gentle and speak with softer voices. Evolutionists claim that this is an evolutionary survival mechanism. We would suggest this is part of God’s design of the human reproductive system.

Research on adopted children shows that some traits are common to adopted children that do not commonly appear in children who are not adopted. In the nine months of pregnancy, there is a “primal bonding that happens by biological design.” Those of us with adopted children can attest to some behavior issues that may be related to the adoption process.

God gave us the ideal arrangement for family–one man and one woman in love with each other produce children they love and care for. Unfortunately, that arrangement is not always possible. Understanding the stress and feelings involved can go a long way toward making adoption a good experience.

As we examine life issues from beginning to end, we know that every child needs a loving family, and every senior adult needs someone who loves them.

— John N. Clayton © 2021

The above information is from a series of articles in The Week for December 10 and 17, 2021.

Why Zebras Wear Stripes

Why Zebras Wear Stripes

A child said that a zebra is a horse in striped pajamas. Of course, zebras are not horses, and they don’t wear pajamas. But have you ever wondered why zebras wear stripes? And I have another question—are they white animals with black stripes or black animals with white stripes?

There are at least five possible answers to why zebras wear stripes. Probably the best known is so they can hide in the tall grass. But not all zebras live in areas with tall grass. Also, their main predators (lions and hyenas) are not good at seeing far away. They are more likely to smell zebras before they see them.

Another possibility is that the stripes help to repel flies. In a study published in 2020, researchers put rugs on horses to test that theory. They draped solid-color rugs on some horses and striped or checked rugs on others. They found that fewer flies landed on the horses with striped or checked rugs, and those biting African horseflies carry diseases that can be fatal for zebras.

Still, another idea is that stripes help zebras stay cool. The black and white areas create differences in heat exchange patterns causing air to move over the zebra’s body. So we think the stripes make the zebras look “cool” too.

Every zebra has a different stripe pattern, like how every person has a different fingerprint. So maybe this allows the zebras to identify each other. We don’t have to look at people’s fingers to tell who they are. Instead, we look at their faces. However, zebra faces look pretty much the same except for those different stripe patterns.

Maybe those stripes work in another way to evade predators. Perhaps they fool predators by what is called “motion dazzle.” A bunch of striped zebras moving around might confuse a predator in the way a person can become confused or dizzy watching striped objects in motion. So it makes sense that it would be hard to pick out one animal in a herd of moving zebras.

So if we wonder why zebras wear stripes, the answer is–we don’t know for sure. As far as the other question, zebras have black skin, and their default hair color is black. However, some hair follicles have turned off the melanocytes that produce the melanin that gives the hair its color. So those hairs are white. So, therefore, you could say that zebras are black with white stripes.

But that brings up the question of why are those melanin-free hair follicles so nicely arranged in beautiful stripes instead of randomly, resulting in a dull gray appearance. People appreciate beauty, and since we are created in God’s image, He must also be a fan of beauty. I want to suggest that God just likes to add a little extra flair to His creations. He has certainly created many beautiful things, and zebras are just one of many examples. Perhaps that’s why zebras wear stripes.

— Roland Earnst © 2021

Reference: livescience.com/zebras-black-and-white

Seeing Is Not Always Proof of Reality

Seeing Is Not Always Proof of Reality

If you see a picture of it, it must be real – right? The answer is absolutely not. Human gullibility is astounding, and fake pictures are as old as photography. In 1839, Hippolyte Bayard convinced people that he had committed suicide by creating a photo showing himself as a drowned man. In fact, Bayard lived until 1887. Seeing is not always proof of reality.

In the early 1900s, there were many faked pictures using double exposures, cropping and rephotographing, or even using models. One of the most famous pictures was the “Loch Ness Monster.” The photo got worldwide distribution in 1934. However, in 1975, the son of one of the pranksters admitted that it was a picture of a toy floating in the water.

In our day of technological altering of photographs, anyone can doctor a picture to appear authentic. This is especially true when there is a lot of media hype about a monster, an alien, or a ghost. Reflections from a window have confused many people, even pilots who mistook what they saw as a UFO. Unfortunately, seeing is not always proof of reality.

Many years ago, I helped my wife on a hike with a bunch of young girls
. We stayed too long in the woods and were walking back in the dark. An object that looked like a ghost appeared in front of us. It had two eyes, a round mouth, and a narrow nose. It had an odd green glow, and it didn’t move, but the girls started screaming and crying. When I turned my flashlight on it, we could see that we were looking at a hollow, dead tree with holes in locations that made it look like a face. It was glowing because of the northern lights. Around Lake Superior, there are veins of glowing minerals, and ghost stories have arisen when people saw that effect and didn’t know what it was.

Another personal ghost story involves a haunted house in Scotland where we were invited to spend the night (for a fee). We were told to expect haunting ghost sounds, including moans and screams and footsteps on the stone floor above us. The windows in the house were very old, and, given enough time, glass flows. Unfortunately, the glass had flowed to the point that there were holes in the windows. When the wind blew through the holes, it made sounds. The house cooled rapidly in the evening, and as the stones in the floor contracted, they made sounds that resembled footsteps.

Seeing is not always proof of reality. There is no credible evidence of ghosts, aliens, monsters, demons, or zombies roaming around. We do not live in a world full of non-human spirits trying to harm us. People often resort to ghost-like explanations when they see something they don’t understand. When Jesus walked on the water (Mark 6:49), the immediate response of His disciples was to cry out that they had seen a spirit. Jesus told them not to be afraid, and He would say the same to us.

— John N. Clayton © 2021

Reference: Smithsonian magazine, December 2021, pages 14-20.

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.