Tag: Proxima Centauri

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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.

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Stephen Hawking’s Search

Stephen Hawking's Search

Stephen Hawking’s search ended one year ago today. He was perhaps the most famous scientist in the world until his death. Hawking was a British theoretical physicist and cosmologist. In 1963, when he was 21 years old, he was diagnosed with amyotrophic lateral sclerosis (ALS) also known as Lou Gehrig’s Disease. The doctors gave him two years to live. He far exceeded the life expectancy of an ALS patient, even though the disease gradually stole his ability to move.

By the end of his life, Hawking spoke using a computerized voice that he controlled with his cheek muscles using a slow process of selecting words and letters. In spite of his disability, he gave lectures and wrote best-selling books. His motto was “There are no boundaries.” Although he had previously written that God was not needed to explain the creation, in 2014 he openly declared himself to be an atheist.

Hawking married Jane Wilde in 1965. Over the years his illness and his celebrity put a strain on the marriage. Also, Jane Hawking was a Christian and Stephen was an unbeliever, which added to their differences. In 1990 Stephen left Jane for one of his caregivers. In 1995 he divorced Jane and married the caregiver, Elaine Mason. Stephen divorced Elaine in 2006. Hawking then resumed a closer relationship with Jane and his children and grandchildren. Jane wrote a book about their renewed relationship, and it was made into a movie The Theory of Everything in 2014. Eddie Redmayne played Stephen Hawking in the film, and the role won him the Academy Award for Best Actor.

Speaking of the “Theory of Everything,” that is what Stephen Hawking’s search was about. He and other scientists have spent years trying to discover that theory. On January 8, 2018, a new episode of the series “Favorite Places” premiered on CuriosityStream.com. In the show, Stephen Hawking was shown traveling through space to visit some of his favorite places including Venus, the Sun, and the star Proxima Centauri. Narrating the adventure with his computer-generated voice, he told about his search for the “Theory of Everything.”

“I have been searching for something my whole life. Something to explain the world that is by turns kind and cruel, beautiful and confusing. A single all-encompassing idea that can explain the nature of reality—where it all came from and why we exist at all—the Theory of Everything.”

Perhaps in Stephen Hawking’s search, he was overlooking the real answer to his questions. Is it possible that he left out the key to that answer—God. Perhaps his ex-wife Jane had the answer all along in her Christian faith. He acknowledged that the universe is amazingly fine-tuned for life. He attempted to explain that by the idea that this is only one of an almost infinite number of universes with different parameters, and we just happen to live in the one universe with the right parameters and laws to allow life to exist.

Instead of an accidentally fine-tuned universe, what if God created a perfect universe. What if God is love and He created us so that He could love us and so that we would love and serve Him. What if our failure to do so explains why the world is “by turns kind and cruel.” That would explain “where we came from and why we exist at all.” It would also explain “the nature of reality.” That is where Stephen Hawking’s search was leading for his “whole life.”

Sadly, Stephen Hawking never found what he was searching for. We think that the “Theory of Everything” is written in the Bible ready for each of us to discover for ourselves.

–Roland Earnst © 2019

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Life on Other Planets Doubtful

Life on Other Planets?
We have repeatedly pointed out that finding life on other planets has no bearing on the question of God’s creation of life on Earth. The Bible does not say that this is the only place where God created life.

Astronomers have observed over 3500 planets orbiting stars other than our Sun. Many writers have suggested that life in space is natural and likely because of the number of planets that exist. That assumption has a problem. There are an enormous number of variables that must be precisely controlled to allow life to exist.

Scientists have recently discovered that while it takes 243 days for Venus to rotate once, its atmosphere requires only four days in what is called “superrotation.” How can a planet’s atmosphere rotate 60 times faster than the planet itself? What effect does this have on the conditions at the surface of the planet where life could exist?

Another recent discovery concerns Proxima Centauri b, a planet orbiting in the habitable zone of the closest star to us other than the Sun. The star it orbits, Proxima Centauri, is continuously flaring and driving away any atmosphere that an orbiting planet might have. Astronomers working on the study of this star and the planets around it released a statement saying “any chance for life on Proxima Centauri b may be toast.”

We continue to find that the conditions needed for life on other planets are numerous. Having water is important, but many other factors must be carefully controlled for a planet to support even the most simple forms of life.

God’s creation of the Earth and the conditions that allow life to exist here becomes more and more amazing as we learn more about the cosmos.
–John N. Clayton © 2017
Data from Astronomy magazine, December 2017, pages 12 and 17.