The Pale Blue Dot

Pale Blue Dot

The picture above is the “Pale Blue Dot” photograph, taken by the Voyager 1 spacecraft on Valentine’s Day, February 14, 1990. At the time, Voyager 1 was 3.8 billion miles (6 billion km) from Earth and moving away. The camera was about to be shut down to save power, since it was not going to fly close to any planet as it was leaving the solar system. Before shutdown, the mission commander ordered the probe to take 60 images to form a “Family Portrait of the Solar System.” Thirty-four minutes after it took this picture, the camera was shut down forever. In the picture, the Sun is below, and the pale blue dot you can barely see in a sunbeam is planet Earth.

This year, prominent atheists became upset by astronaut Victor Glover’s words aboard Artemis 2 during its historic trip around the Moon. Some even expressed concern about the “separation of church and space.” However, when he spoke from space, he seemed to receive approval from the other astronauts, but not from atheists on the ground. Some of Glover’s words that apparently upset atheists include, “You’re on a spaceship called Earth that was created to give us a place to live in the universe. You are special. In all of this emptiness, this is a whole bunch of nothing, this thing we call the universe, you have this oasis, this beautiful place that we get to exist together.” The pale blue dot is not insignificant.

Why should those words distress anyone? Many early scientists explored creation because they believed in an orderly universe created by an intelligent God. Many astronauts have said that being in space gave them a spiritual experience as they realized that Earth reveals design and purpose. Many leading science popularizers have tried to tell us that science destroys Christian belief. Richard Dawkins, Bill Nye, Michael Shermer, Lawrence Krauss, and others have written popular books arguing that science makes belief in God unnecessary and implausible. The truth is that scientific discoveries continue to support belief in God and challenge atheism.

Astronomer Carl Sagan was partially responsible for the picture of the pale blue dot, and he popularized the term in his book by the same name. He wrote, “Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all its vastness, there is no hint that help will come from elsewhere to save us from ourselves.” He also said that Earth is such a tiny pale blue dot in the universe that it shows we have no privileged position in the cosmos. Sagan was a brilliant man, but he overlooked the fact that Someone did come from elsewhere to save us. Victor Glover knows that is true. He said that we are not a lonely cosmic accident, but instead, we are loved, and those who believe in Jesus Christ agree.

— Roland Earnst © 2026

What Is a Star-Filled Sky Worth?

What Is a Star-Filled Sky Worth?

What is a star-filled sky worth? When David wrote his psalms, he sat under a star-filled sky without the problem of light pollution from city lights, satellites, or reflective mirrors in the sky. What would it be like if there were tens of thousands of mirrors in low Earth orbit reflecting sunlight down onto various dark areas of the planet?

A California company called Reflect Orbital (we reported on it earlier) hopes to put at least 50,000 mirrors in orbit by 2035 to reflect sunlight onto various customers on Earth’s surface. The Federal Communications Commission (FCC) has just given them permission to test the idea by launching their first space mirror into orbit.

Ben Nowak, the CEO of Reflect Orbital, suggests endless possibilities with sunlight not limited by geography or time of day. His company’s website says it could help search-and-rescue teams locate a missing person much more quickly. Another suggestion is that a city could have evenly lit streets without carbon emissions from electric-powered streetlights. Furthermore, construction projects could be completed in half the time because the crews could work safely through the night. And, of course, they also suggest mirrors reflecting sunlight onto solar arrays could extend their electricity-generating ability and reduce the use of fossil fuels.

The question is, what is a star-filled sky worth? Many people visit dark-sky locations to enjoy the stars and the Milky Way at night. The Colorado Plateau in the southwestern United States spans Colorado, Arizona, Utah, and New Mexico and is home to many of the best dark-sky locations. Places like Grand Canyon National Park, Zion National Park, Great Basin National Park, Arches National Park, Bryce Canyon National Park, Canyonlands National Park, and Natural Bridges National Monument are locations where visitors see the night sky without major light pollution.

So far, the emphasis has been on the economic advantages that could be derived from placing mirrors in space to direct sunlight into various locations. But a team of researchers is attempting to put an economic price on the cost of the loss of dark skies and the impact on tourism. They’re concerned about the “decline in visitor satisfaction when environmental quality deteriorates.” Another factor that must be considered is the effect on wildlife in areas where those mirrors are beamed and the circadian rhythm of animals, plants, and people from the diffused light that is scattered out into a larger area. God has given us a beautiful night sky that the psalmist was able to enjoy thousands of years ago. It is already disappearing. Will that be completely lost to coming generations? What is a star-filled sky worth?

— Roland Earnst © 2026

References: space.com HERE and HERE

 Extraterrestrial Life Has Visited Earth

 Extraterrestrial Life Has Visited Earth

There continues to be a lot of talk and concern about intelligent alien life invading planet Earth. This shows up in news reports about the federal government releasing UFO (UAP) files and in recent movies. Is it possible that extraterrestrial life has visited Earth or is presently visiting Earth?

There is no evidence of intelligent alien life anywhere in our solar system. That means any extraterrestrial visitors would have to come from another star system elsewhere in our Milky Way. We don’t have any evidence, either through SETI or by any of our space telescopes, to indicate that intelligent life could be living on a planet or possibly a moon anywhere closer than many light-years from Earth. The closest star to our Sun is Proxima Centauri, which is 4.25 light-years away. So, any intelligent aliens would have to travel for many years, or possibly centuries, to get here. That assumes they could travel at 10% of the speed of light. Light speed is 186,000 miles (300,000,000 meters) per second. Einstein’s equations, which have been verified, indicate that it is not possible to travel anywhere near the speed of light. In fact, most studies suggest that 10% of the speed of light (19,000 miles per second) is the highest realistic speed for traveling through space.

The reason for the speed limitation involves the laws of physics, engineering constraints, and the amount of fuel required to propel a spacecraft. Because space has no air, traveling through it causes less resistance than traveling through our atmosphere. Once the spacecraft achieves its cruising speed, the propulsion system could be shut down. However, it would have to be used again many years later for deceleration at the end of the journey.

Even though there’s no air in space, there are hydrogen atoms and microscopic-sized grains of dust. Traveling at 19,000 miles per second, those dust particles would hit a spacecraft’s hull like speeding bullets, possibly piercing the hull unless it was sufficiently thick. Even striking hydrogen atoms would produce radiation that could erode the hull. Therefore, the hull would have to be thicker, increasing the mass and requiring more fuel. More fuel adds more weight, so you must add more fuel to compensate for the weight of that extra fuel. It’s a vicious cycle. 

All of our rockets that propel payloads into space have used chemical reactions for propulsion. The mass of fuel needed for a spacecraft to reach a velocity of 19,000 miles per second would require more chemical fuel than the mass of the entire observable universe. Therefore, chemical propulsion is not feasible. Nuclear fusion is something that NASA has been working on, and it would be a more efficient way to generate propulsion, but getting a spaceship to cruise at 19,000 miles per second would require nuclear fuel equivalent to 150 times the spaceship’s mass. Therefore, that doesn’t seem like a good alternative. Another possibility would be antimatter propulsion, which exists only in theory. So far, scientists have created only 20 billionths of a gram of antimatter, and it lasts only a fraction of a second. Plus, the cost of producing it runs into hundreds of millions of dollars.

If extraterrestrial life has visited Earth, we would expect it to face many physical problems. Beyond that, there is the time required. If they were coming from a star system 50 light-years away and traveling at 10 percent of the speed of light, it would take them 500 years to get here. Unless these intelligent space aliens have extremely long lifespans, it would have to be a multi-generational trip. They would have to be much better than human earthlings at getting along with each other in confined spaces. They would also need a strong desire to visit our planet. If they were that interested in us, they could send electromagnetic radio waves, which travel at the speed of light.

The intelligence, technology, and physical resources required for extraterrestrials to travel to Earth are enormous. In addition, if they came from a civilization so advanced that they could solve all of these problems, why would they waste all those resources to visit the relatively primitive planet Earth?

Considering the facts, the probability that extraterrestrial life has visited Earth seems extremely slim. However, there is very strong evidence that extraterrestrial life has visited Earth. This planet has been visited by its Creator, and He looked like one of us. We have dealt with the evidence of that visitation many times before, and you can read the story of it in the first 14 verses of the Gospel of John in your Bible.

— Roland Earnst © 2026

Reference: theconversation.com

Fine-Tuning Explanation

Fine-Tuning Explanation

Roberto Fumagalli is a Senior Lecturer in Philosophy, Politics, and Economics at King’s College London. Some months ago, he wrote an article in the Journal for General Philosophy of Science arguing that the fine-tuning of the laws and constants of our universe that makes life possible is real and requires a non-chance-based explanation. In other words, chance is not an adequate fine-tuning explanation for the existence of life. We have argued before that the universe is fine-tuned for intelligent life.

Fumagalli summarizes his argument as follows:

1- The universe is fine-tuned for intelligent life.

2- The probability of fine-tuning is not consistent with chance.

3- Therefore, fine-tuning calls for a non-chance-based explanation.

Scientists widely acknowledge that there is at least some fine-tuning of the parameters and laws of the universe and that it is not trivial. However, some critics seek to cast doubt on the need for fine-tuning, saying that we don’t know what other forms of advanced life might be possible. In other words, we only know of carbon-based life, but some suggest there may be other forms in which intelligent life could flourish. However, only very specific combinations of parameter values would permit the chemical complexity required for intelligent life. Therefore, the fine-tuning explanation does not support the possibility that chance is the cause.

The values of at least some of the fundamental parameters of the universe are very unlikely to fall within the range that permits intelligent life. Only an exceedingly narrow range of parameter values would allow life, especially advanced intelligent life. So, what are the possible fine-tuning explanations for the laws of physics and the relationships between the various forces?

One explanation is chance, but that does not seem very plausible. Another explanation is the multiple-universe theory proposed by some scientists. That would require a multitude of universes with different parameters, and we just happen to be the lucky ones in the one universe that allows life to exist. That is not a scientifically testable hypothesis, and it would require a fine-tuned, multi-universe-generating device. Another possibility is some unknown physics that scientists have not yet discovered, but that would also have to be fine-tuned.

The one fine-tuning explanation that seems by far the most acceptable, the most supportive of the evidence, is that our universe is the product of cosmic design by an infinite intelligence, namely the God of the Bible.

— Roland Earnst © 2026

Reference: scienceandculture.com

Space Aliens and Disclosure Day

There has been an explosion of comments in the news media and on social media about space aliens and Disclosure Day, following President Trump’s order to release previously classified information on UAPs (UFOs). At the same time, a “blockbuster” movie by Steven Spielberg is set to be released on June 12, 2026. Its title is Disclosure Day, based on a story by Spielberg, a firm believer in extraterrestrials.

Social media contains comments that the government’s disclosure of information about UAPs will challenge traditional religious beliefs. The current print issue of Moviemaker magazine features an interview with David Koepp, the screenwriter of the Disclosure Day movie. When the interviewer asked him if he believed in aliens, he compared aliens to God or religion. He said, “My personal belief is the same as my personal belief in God, which is why I think religion is an important part of Disclosure Day.” He goes on to say that his favorite theory about aliens is, “Yes, other intelligent life forms exist. Yes, they’ve been here. They may even be here now. We can’t perceive them.”

Thus far, what the government has released from its secret files is not much more than grainy pictures of objects in the sky that seem to move erratically, filmed from a distance. There doesn’t seem to be anything different from what we have seen before. Concerning space aliens and Disclosure Day, Spielberg claims that the movie will contain “more truth than fiction” and will “upend all established order.” That sounds to me like overblown promotional hoopla designed to sell more tickets.

What if the government released materials that conclusively demonstrated that aliens are visiting our planet? Would it mean the end of Christian faith? Would it refute the Bible? The answer is no and no. The Bible deals with the creation of the universe (Genesis 1:1) and the creation of life upon the Earth (the rest of Genesis 1 and 2). It also tells us that God created spiritual beings. It does not tell us whether God created physical creatures elsewhere within the universe. Even if God created life on other planets within the universe, which is questionable, and even if we learned that aliens have visited Earth, that would not refute the existence of God. Those other creatures would have to have been created by God. Only an intelligent force outside of the universe could have created what is within the universe.

Fred Hoyle and other scientists have advanced the idea of “panspermia,” meaning that life on Earth was seeded by aliens from elsewhere in the universe. There is absolutely no evidence for that, but even if true, it would not explain where those intelligent beings came from. It has been scientifically established that the universe had a beginning. That was the beginning of time, space, matter, and energy, so whatever caused the universe’s origin was outside of time and space and not material. That is the way the Bible describes God. Don’t let space aliens and Disclosure Day interfere with your faith in the one who created all things. (See Colossians 1:15-16.)

— Roland Earnst © 2026

Reference: moviemaker.com

Two Views of the Universe

Two Views of the Universe - Earthset
Earthset photographed by Christina Koch on Artemis 2 Mission

Prominent atheists recently became upset by Victor Glover’s words aboard Artemis 2 during its history-making trip around the Moon. Some even expressed concern about the “separation of church and space.” We have written before about Victor Glover and his status as a Bible-believing Christian. When he spoke from space, he seemed to receive approval from the other astronauts, but not from atheists on the ground. We see the contrast between the two views of the universe.

Some of Glover’s words that apparently upset atheists include, “You’re on a spaceship called Earth that was created to give us a place to live in the universe…You are special. In all of this emptiness, this is a whole bunch of nothing, this thing we call the universe, you have this oasis, this beautiful place that we get to exist together…” Why should those words distress anyone?

Historically, many early scientists explored creation because they believed in an orderly universe created by an intelligent God. Many astronauts have said that being in space gave them a spiritual experience as they realized that Earth reveals design and purpose. I remember watching the Apollo 8 crew read from the book of Genesis on Christmas Day in 1968 as they traveled around the Moon. Our present NASA administrator, Jared Isaacman, said that his time in space convinced him that “the heavens declare the glory of God.”

Many leading science popularizers have tried to tell us that science destroys Christian belief. Richard Dawkins, Bill Nye, Michael Shermer, Lawrence Krauss, and others have written popular books arguing that science makes belief in God unnecessary and implausible. The two views of the universe can’t both be correct. The truth is that scientific discoveries continue to support belief in God and challenge the atheist concept.

Years ago, Carl Sagan said that Earth is such a tiny dot in the universe that it shows we have no privileged position in the cosmos. Victor Glover said that we are not a lonely cosmic accident, but instead, we are loved. On April 30, 2026, the movie “The Story of Everything” will open in select theaters nationwide. It will compare the two views of the universe—the atheist view and the biblical view that God designed and created all things and that He loves us. I think the movie will show that God’s story is the best and that it is actually supported by science.

— Roland Earnst © 2026

References: scienceandculture.com HERE and HERE. You can see Victor Glover’s statement from space HERE. Click HERE for more information about “The Story of Everything.”

The Night Sky Is in Danger

The Night Sky Is in Danger
The night sky and Milky Way over the Himalayas in Nepal

Five months ago, we reported that a California company called Reflect Orbital planned to place 4,000 solar mirrors in a sun-synchronous orbit to reflect sunlight into Earth’s twilight areas. They claimed it would extend the hours of solar energy production, allow people to work later, improve safety, and boost crop growth. They planned to test the concept in April 2026. (You can find that posting HERE.) Now, space.com reports that they want to place 50,000 orbiting mirrors that are three times larger than the original plan. Are we facing the end of the night sky?

Adding to the Reflect Orbital proposal, in January, Elon Musk’s SpaceX announced plans to launch one million power-hungry data centers into space, where they can utilize solar energy. The U.S. Federal Communications Commission (FCC) must approve these plans, which they appear to be fast-tracking. Astronomers worldwide are alarmed.

Robert Massey, deputy director of the Royal British Astronomical Society (RAS), objected that these proposals are “absolutely the destruction of a central part of human heritage.” He said, “It would absolutely transform our view of the sky.” RAS and many other research organizations are filing objections with the FCC.

According to Massey, the night sky would be three times brighter because of Reflect Orbital’s sun-reflecting mirrors, and dark-sky sanctuaries where astronomers place their telescopes would be lost. The SpaceX data centers would not be as bright as the mirrors but would still be visible to the naked eye. Astrophysicist Noelia Noel at the UK’s University of Surrey said, “While innovation in satellite technology brings clear societal benefits, scaling to hundreds or even millions of bright objects—or deliberately illuminating the Earth from orbit—risks fundamentally altering the night sky. This would have profound consequences not only for astronomy but also for ecosystems, our cultural heritage, and our collective relationship with the cosmos.”

When the psalmist David admired the night sky, he had no satellites or solar reflectors to get in the way as he wrote, “The heavens declare the glory of God; the skies proclaim the work of his hands. Day after day, they pour forth speech; night after night, they display knowledge. There is no speech or language where their voice is not heard. Their voice goes out into all the earth, their words to the ends of the world.” (Psalms 19:1-4) I pray that we will always be able to be in awe of the night sky and see the message of God’s glory it conveys.

— Roland Earnst © 2026

Reference: space.com

Water Is Unlike Any Other Substance

Water Is Unlike Any Other Substance

My astronomy students were always amazed to learn the basic physics fact that water exists in 22 different forms throughout the solar system, and that water is unlike any other substance on planet Earth. A simple example of this is to consider why a lake freezes, with ice on top and liquid water underneath. When most substances cool, they become denser, but at 4 degrees Celsius, water starts to violate that rule and becomes less dense.

Every elementary student knows that water can exist as vapor, liquid, or solid (ice). On Earth, water boils at 100 degrees C when the air pressure is 100 kilopascals. (A Pascal is 1 newton per square meter, and there are roughly 4.45 Newtons in a pound). At the same air pressure, water freezes at 0 degrees C. If you drop the air pressure to 100 Pascals, ice turns into water vapor, skipping the liquid phase altogether. One more point of interest to astronomers is that if the pressure is extreme–over 100 gigapascals–water will exist as ice regardless of the temperature.

As space probes visit other planets and their moons, they measure temperatures. Not only do the temperatures tell us about these bodies, but the shapes of ice crystals on them can tell us about the conditions there. Natural water ice crystals on Earth are hexagonal, but since water is unlike any other substance, scientists in the lab have forced ice crystals to take six different shapes. Depending on the temperature and pressure, they can be cubic, tetragonal, orthorhombic, rhombohedral, and monoclinic.

It has been said that the more we know about the creation, the closer we get to the creator. Because water is unlike any other substance, its structure allows a lake to freeze on the surface while life continues under the ice. The presence of water on other planets and their moons throughout the solar system enables the clockwork precision that allows Earth to endure for centuries with great stability. We learn about all of this through the facts of science discovered by human minds. Genesis 1:1 not only tells us that there was a beginning to time, space, and matter/energy, but we now know that the “heavens” includes God’s miracle glue that holds it all together–water.

— John N. Clayton © 2026

Reference: March 2026 issue of Scientific American (pages 12-13)

Hubble Constant and Gravitational Waves

Hubble Constant and Gravitational Waves - Merging Neutron Stars
An artist’s impression of 2 neutron stars colliding and merging

For years, many scientists were reluctant to accept that the universe had a beginning. Looking through a telescope in the 1920s, Edwin Hubble observed that other galaxies were moving away from us. Going back in time, this suggests that at some point, they were much closer together. If we go far enough back, all matter and energy in the universe would have started from a single point called a singularity. For years, many scientists dismissed this idea, and Fred Hoyle mockingly named it the “big bang.” This leads us to the Hubble constant and gravitational waves, but I am getting ahead of the story.

In 1964, Arno Penzias and Robert Wilson accidentally discovered the Cosmic Microwave Background radiation (CMBR or CMB), which is leftover from the cosmic creation event (aka “big bang”). The CMB scientifically proved that the universe had a beginning. Further evidence in the 21st century made it impossible to deny that the universe had an origin. Since 1998, science has shown that the universe’s rate of expansion is accelerating. They hypothesize a mysterious force called “dark energy” to explain this acceleration, even though they have never detected this mysterious force.

To measure how fast the universe is expanding, scientists look for what they call the Hubble constant. They have two methods for measuring it: one involves using supernovae, and the other is based on physics principles within the standard model of cosmology. Explaining these methods is beyond the scope of this discussion, but the key issue is that they produce different results. This discrepancy is known as the “Hubble tension.” This leads us to a connection between the Hubble constant and gravitational waves.

In a March 2026 research paper, scientists from the University of Illinois Urbana-Champaign and the University of Chicago have proposed a third way to measure the Hubble constant using gravitational waves. Albert Einstein’s 1915 theory of general relativity predicted gravitational waves, but they remained undetected for a hundred years. Then, in 2015, the Laser Interferometer Gravitational-Wave Observatory (LIGO) in the United States detected a gravitational wave for the first time. Since then, with international collaboration, more detections have followed.

Gravitational waves are produced by the collision and merging of black holes or neutron stars. The new theory suggests that by measuring the speed at which these collisions are moving away from us, it may be possible to determine the Hubble constant more precisely. Achieving this will require more sensitive gravitational wave detectors than the current ones. According to Daniel Holz at the University of Chicago, this could help us “learn more about the age and composition of the universe.”

The Hubble constant and gravitational waves give us new insights into creation. Ever since science was compelled to accept that the universe had a beginning, we have learned more about the power and wisdom of the Creator. The more we discover, the more we realize we can know there is a God through what He has made (Romans 1:20).

— Roland Earnst © 2026

Reference: space.com

The Reason for a Multiverse Hypothesis

The Reason for a Multiverse Hypothesis
Multiple Bubble Universes Illustration

Science fiction writers love multiverses, and so do many scientists. In science fiction stories, characters step through a portal and emerge in a parallel or inverted world. In the minds of some physicists, multiple universes exist in what is known as the multiverse hypothesis. According to that hypothesis, an almost infinite number of universes exist, each with radically different physical laws and properties. There is no evidence for this, and it is impossible to prove or falsify. So, what is the reason for a multiverse hypothesis?

Agnostic scientists who theorize a multiverse do so not because of evidence but because they cannot explain the apparent fine-tuning of the universe. Why are the particle masses and force strengths in our universe perfectly fine-tuned for us to be here? Slight changes in any of those factors would make it impossible for life to exist and likely for a universe with stars and planets to form.

Speculation about “bubble universes” in a frothing multiverse is pure science fiction at present, so what about another option? Some have proposed an idea based on quantum mechanics. This theory of particle physics states that particles can exist in a “superposition” of possible states until someone measures the particle’s position, at which point it collapses into a single state. It’s difficult to see how this could explain alternate universes, since quantum theory deals with the very small, not entire universes. That brings us back to the reason for a multiverse hypothesis. But, wait! Isn’t there another possible explanation for the fine-tuning of our universe?

Yes, there is another possible explanation for the astonishingly fine-tuned parameters of our cosmos. However, it is one that many stubbornly refuse to accept, or even consider. What about the possibility that the universe was designed by an infinite Intelligence that exists outside of time and space? Isn’t that a more reasonable explanation for the precise design that makes our existence possible?

Quantum fluctuations can’t explain it. Even an infinite number of universes could not explain how we happen to be lucky enough to live in a universe with the right combination of all the exact factors needed for life. Luck and chance are not scientific explanations. Even if there were an almost infinite number of universes, there would still need to be an explanation of how they originated. The design we observe in the cosmos can best be explained by a Designer. Isn’t the only reason for a multiverse hypothesis the desire of skeptics to avoid the most obvious and logical explanation?

— Roland Earnst © 2026

Reference: Science News magazine for February 2026, pages 62-63, and sciencenews.org