The Solar System Archives - Page 17 of 25

November 12, 2019November 12, 2019

What the Mercury Transit Tells Us

What the Mercury Transit Tells Us Above is a photo of the Sun. If you look closely, you will see a small dot in the upper half near the right side. That is the planet Mercury, the closest planet to our Sun. Mercury made what astronomers call a “transit” of the Sun on Monday morning, November 11, 2019. In our area of the country, the sky was overcast, and it was snowing. However, Bill Ingalls of NASA took this photograph from his location in Arlington, Virginia. I find it interesting to consider what the Mercury Transit tells us.

What’s so special about Mercury passing in front of the Sun? For one thing, it doesn’t happen very often. Although the last time was only three years ago, the next time will be in 2032, but it won’t be visible from North America. The next Mercury transit visible in North America will be in 2049. Since Mercury is closer to the Sun, it passes between the Sun and us every 116 days. However, most of the time, it is either above or below the Sun from our view, and Earth’s atmosphere makes it invisible in the daylight.

Scientists used precision telescopes and equipment to study the transit. They can learn more about the atmosphere of Mercury as it is silhouetted against the Sun. Historically Sir Edmund Halley (1656-1742) watched a transit of Mercury and realized that it could be used to measure the distance between the Earth and the Sun. It occurred to him that a transiting planet would appear in different positions to viewers in different locations on Earth. Measuring the apparent shift between two distant Earth locations at the same time and applying a little math, one could calculate the distance to the Sun. In 1769, after Halley’s death, astronomers used a transit of Venus to calculate the Earth-Sun distance.

Think about what the Mercury transit tells us without even seeing it? Because of the fact that astronomers can know in advance the exact date and time of a transit of Mercury (or Venus), or a solar eclipse (when the Moon passes between Earth and Sun) we realize that the solar system is orderly. We can study the heavens and learn of the Creator. We can see His wisdom and design of our planet and the solar system in which it exists. We can know there is a God by the things He has made (Romans 1:20) as the heavens declare His glory (Psalms 19:1).
— Roland Earnst © 2019

November 2, 2019November 2, 2019

Moon Record in the Solar System

The solar system record for the largest number of moons has just been taken over by Saturn. Previously Jupiter was the record holder with 79. Now the moon record in the solar system goes to Saturn with 82!

Astronomers used some of the world’s largest telescopes, including the Subaru Telescope in Hawaii to make the recent discoveries. The same team led by Scott Sheppard of the Carnegie Institution for Science in Washington, D.C., discovered 12 previously unknown moons around Jupiter last year. Now they have helped Saturn pull ahead of the competition.

Here we are living on a planet with only one Moon. Should we feel disadvantaged? Not at all! Imagine how confusing it would be to live on a planet with 82 moons. Seriously, one is enough. That is especially true when we have one Moon that is just right. We have pointed out before how precisely well-designed and well-placed our lone Moon is. Here are a few reminders with links to get more information:

Our Moon…
…has just the right mass to stabilize Earth’s rotational tilt.
…is just the right distance from Earth to create beneficial ocean tides.
…is just the right size to create total solar eclipses, which have helped us to learn more about the Sun.
…works with the Sun and stars to “mark seasons and days and years” (Genesis 1:14)
…reflects the light of the Sun to give a night light essential for many forms of life.

Those are a few of the reasons our Moon is the best one in the whole solar system! We asked before, “How many moons are enough?” Even though the number of known moons orbiting Jupiter and Saturn has changed since we asked that question, the answer is still the same. One Moon, precisely designed and positioned, is exactly what we need. We hold the moon record in the solar system for the best Moon of all! There are too many “coincidences” for it to be an accident. We see the work of a Creator, who is an amazing Engineer.
— Roland Earnst © 2019

October 4, 2019October 1, 2019

Ocean Treasure House

Oceans are essential for life on Earth. As we learn more about the oceans, we realize more and more how important the ocean treasure house is to our survival.

Fish, shrimp, and lobsters are some of the blessings that come from the oceans. Those vast bodies of water contain a great wealth of biomass that can address human food needs. The very fact that these forms of life lay millions of eggs that can provide massive amounts of food quickly is a testimony to the vast ocean treasure house. As humans conserve and farm these resources, we see the potential for food production with minimal environmental impact.

But food is only one of the blessings that come from the oceans. The oceans of the world provide water for the land. Evaporation lifts massive amounts of water from the oceans. The moisture condenses and falls on the continents providing the vital water needed by all land forms of life.

The oceans also moderate temperatures on the land. When Earth is closest to the Sun, its tilt exposes the Southern Hemisphere to the direct radiation of the Sun. Since oceans mostly cover the Southern Hemisphere, the water reflects much of the radiation, and the rest is absorbed and stored in the water. The water carries this heat toward the polar areas of the planet, moderating temperatures and allowing life to exist in abundance at the higher latitudes.

When the Earth is at its farthest distance from the Sun, the Northern Hemisphere is tilted toward the Sun, exposing the land to the Sun’s radiation. The land surface absorbs more heat radiation and reflects less of it. The waters in the Southern Hemisphere moderate the climate by using their stored energy to supplement the heat from the Sun.

In addition to their thermodynamic uses, the oceans also control the gases that are critical for life on Earth. Photosynthetic processes taking place in the oceans produce most of our oxygen. The oceans are a significant carbon sink, reducing the amount of carbon dioxide that would be in our atmosphere if the oceans did not exist. This not only restricts the adverse greenhouse effects of carbon dioxide but also recycles carbon in ways that benefit the entire planetary ecosystem.

Another ocean treasure house is the minerals they hold. The salt in the ocean is not just sodium chloride (regular table salt). The oceans contain a wide variety of elements that are critical to humans. They include iodine, magnesium, copper, and copious trace elements of biological importance. People who live far from the oceans benefit from these mineral resources because ancient oceans have deposited those minerals on land. Oceans gather and store the elements that humans need. While we have mined these ocean-deposited resources on land, we are now learning to take them directly from the ocean.

As science looks for life elsewhere in the cosmos, it is not likely that we will find it unless we find a planetary environment with oceans comparable to those on Earth. The ocean treasure house is a beautiful feature unique to planet Earth in our solar system. As science observes other stars and other systems, it becomes increasingly clear that planets like ours are exceedingly rare at best. God has provided the ocean treasure house that speaks eloquently of the Creator’s wisdom and power.
— John N. Clayton © 2019

September 26, 2019September 25, 2019

God’s Creation Method for the Moon

Gods Creation Method for the Moon Astronomy magazine (November 2019, page 44) has an interesting article on some of the facts about the Moon. The information is based on the 842 pounds (382 kg) of rocks brought back from the Moon by the Apollo astronauts. Every time an issue of this magazine comes out, I have two groups of people who like to write to me with their analysis of the meaning of an article in the magazine. (We also have several who do the same thing with other scientific magazines and journals.) The discussion of the letter writers has to do with God’s creation method.

One of the people wrote that this Moon data clearly shows that God had nothing to do with the creation of the Earth or the Moon. The other person tried to deny the data maintaining that God “spoke the Moon into existence,” and it was not a natural process. Both of these writers miss the point.

First, there is no reason for believers in God to challenge the scientific data in the article. In this case, the ratio of the isotopes of oxygen in Earth rocks and Moon rocks are the same. The average high school physics student can tell you how that measurement is made and how reliable it is. Earth’s spin axis and the Moon’s orbit are related, and once again, basic physics equations can verify that data. There is no reason to question the data. That data led to the impact hypothesis that the Moon was formed when a Mars-size body impacted the Earth and threw off debris which coalesced into the Moon. There is no reason to feel that somehow those facts deny the existence of God or the description given in the Bible.

The Bible simply says that God created the heaven (“shamayim” – the Hebrew of Genesis 1:1) and the Earth (“erets”). It does not describe God’s creation method. Verse 14 tells us, “God said, Let there be lights in the expanse of the sky…” In verse 16, this is expanded with the words, “God made (“asah” in Hebrew meaning He made or fashioned what already existed) two great lights …” Then it says that He “…let them be lights in the expanse of the sky to give light on the earth.” The material is created in verse 1, where “bara” is used indicating an act that only God can do. The fashioning “as signs to mark seasons and days and years” in verses 14-18 uses the Hebrew “asah,” not “bara.” Genesis 2:3 tells us that God “rested from all his work which God created (bara) and made (asah).” Both processes are involved.

What science is trying to do is understand God’s creation method to fashion the Moon, which is discussed in verses 14-18. This Astronomy article is not trying to understand what He did in verse 1. Sound waves coming from the voice of God did not create the Moon. Whether God spun the Moon out of the cloud of matter from which He formed the Earth, or whether He formed the Moon by a collision, is still being debated by scientists. Whatever opinion one might hold is an opinion of God’s creation method – how He did what He did. It does not in any way reflect negatively on His power and creative ability or on the biblical description of what God did to give us “two great lights.”
— John N. Clayton © 2019

September 21, 2019September 20, 2019

How the Elements Were Created

How the Elements Were Created Science has made significant progress in understanding many things about the universe and our planet and the life on it. However, there are many, many things that we have not yet begun to understand. There are also many things we think we understand, but we are still working on better understandings. One question involves how the elements were created.

At the time of the cosmic creation event (widely called the “big bang”), there were atoms with one proton and one electron and some with twice that many. We call simplest element hydrogen, and two hydrogen atoms combine to form helium in the process of nuclear fusion. More and more fusion took place and still is happening in our Sun and other stars. The process requires intense heat and pressure to fuse the atomic nuclei into a heavier atom.

In stars much more massive than our Sun, heavier elements up to iron can are being formed by fusing more and more atoms together. When you go beyond iron, and all the way up to uranium, even the biggest, brightest, and hottest stars can’t squeeze those atoms together. Scientists believe that the heavier elements are created in exploding stars known as supernovae. When they explode, the theory goes, ripples of turbulence form as the supernovae toss their stellar material into the void of the universe. The forces in that turbulence press more and more atoms together to make the heavier elements. As those atomic elements fly off into space, gravity pulls them into lumps which eventually become planets, such as the one on which we live.

A problem with that explanation is that when the atoms are blasted from the supernovae, they are all traveling in the same direction at perhaps the same speed. How can that produce enough force and heat to fuse them together? An alternate explanation is that the explosion within the supernova is not symmetrical, creating areas of greater density. Ultradense and ultrahot regions concentrated in small areas of the exploding mass perhaps give a better explanation of how the elements were created. (See a paper on that published in the Proceedings of the National Academy of Sciences of the United States.)

Carbon is the basic building block of all living cells. Nitrogen and oxygen, which are the next steps above carbon, bond with it along with other atoms to form living molecules. A little higher on the atomic scale are sodium, magnesium, phosphorus, and other elements which are essential to life. Iron, nickel, copper, and other metals are in molecules within our bodies, and we use them in pure form to build our homes, cars, and electronics. The heavier radioactive elements such as uranium deep within the Earth generate the heat that creates a molten iron core that generates a magnetic field which surrounds and protects us. This is a very simple explanation of a very complex system that makes it possible for us to be here.

Science is only beginning to understand how the elements were created and how they are continuing to be created. How did this amazing, complex system come into being with the precision that put life on this planet? We could declare a god-of-the-gaps to say that we don’t understand it and therefore, God did it. It is much better for us to learn HOW God did it. As we begin to see the wisdom required to put this incredibly complex universe together, we become more in awe of the Creator. We don’t have a god-of-the-gaps who “zaps” things into existence like a magician. Our God is an engineer craftsman who creates complexity and beauty that leaves us without excuse. (See Romans 1:20.)
— Roland Earnst © 2019

August 28, 2019August 27, 2019

Arranging Books on a Shelf

My wife recently did some major rearranging of the books in our library. We have a large number of books, and we needed to downsize and make it easier to find what we are looking for. She asked for my advice about arranging books on a shelf. This brought to my mind a column in Astronomy magazine in January of 2013. In Bob Berman’s “Strange Universe” column, he often presents some interesting facts, and we have referred to his articles previously. In that particular column, he wrote about what random events or “chance” can or cannot accomplish.

The connection with library books goes like this. If you have 4 books on a shelf, how many ways can you arrange them? The answer is “4 factorial,” which is 4 x 3 x 2. Multiply it out, and you find that there are 24 possible ways. However, what if you have 10 books to arrange? That would be 10 factorial, which is 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2. Multiply those numbers, and you will find there are 3,628,800 different ways to arrange 10 books on a shelf. We have way more than 10 books in our library, and I am not going to compute how many possible arrangements there are. Neither my calculator nor my brain could handle it.

When my wife asked for advice on arranging books on a shelf, she didn’t realize what a difficult question she was asking me. However, I had no problem giving a suggestion because I have enough intelligence to know what books should go together by topic. But if you were to put 10 books on a shelf at random, the chance that they would all be in alphabetical order would be about one in 3.6 million. Try it blindfolded and see how long it takes for you to get it right.

Why am I talking about arranging books on a shelf? What’s the point? There are many more than 10 options when it comes to designing any part of the complex universe in which we live. What are the chances that they all came together without any intelligent direction? The possibility would be far lower than for all of the books in our library to be in alphabetical order, or even in topical order, if we just randomly put them on the shelves. The question then becomes: “Can anyone believe that this universe, our solar system, planet Earth, life, consciousness, and intelligence all happened by chance?” My library disproves that theory.
— Roland Earnst © 2019

July 2, 2019June 28, 2019

Solar System Design

Astronomers today use technology to examine areas of the cosmos far removed from our solar system. The fact that they are finding the other systems are very much different from ours should tell us something. In fact, the more we study those other systems, the more we learn about our solar system design and why it is the way it is.

One interesting fact about other systems is that even though some planets are very large and obviously gaseous, they can exist very close to their stars. Astronomers in the past explained the fact that the inner planets of our own solar system are rocky and hard by saying that the Sun burned off the gases and left the rocky material. That may be partially true, but in 2002 astronomers discovered a planet they named OGLE-TR-56b. It is about the same mass as Jupiter but over 30 percent larger. It has to be a gaseous planet to have such a low density.

The surprising thing is that OGLE-TR-56b orbits its star at an average distance of only 2 million miles (3.2 million km). Our innermost planet Mercury is 36 million miles (58 million km) from the Sun. The outer atmosphere of this planet must be around 3000°F (1650° C). It is evident that gaseous planets can exist very close to their stars, so our old explanation of the inner planets in our solar system design is vastly oversimplified.

Most of the planets we see around other stars are very large, which is not surprising since it is easier to see a big planet than a small one. One extra-solar planet is 17 times as massive as Jupiter. The strange thing is that many of the giant planets are closer to the Sun than Venus. Old theories of planet formation suggested that due to the large gravity values of stars, it was impossible for planets to form close to the stars. We now know that is not true.

Science programs on television have delighted in proposing that the cosmos is full of planets and that every galaxy has literally millions of planets. The hope is that if you have enough planets, the chance of having another Earth is improved. We now know that many galactic systems do not have planets at all. The composition and age of galactic systems obviously have a major impact on whether planets can exist, but claims of billions of Earth-like planets in the cosmos are highly exaggerated.

The type of star also has an impact on whether planetary systems can form. Most stars in the cosmos are binary systems containing more than one star. A planet can orbit the stars at a great distance, but shifting gravity fields make planets unlikely if the stars are close together, as most are. How much metal there is in a star system affects planet formation. Metal content varies within galaxies as well as between stars. A part of space dominated by gases like hydrogen and helium are not as likely to produce planets as areas where there are large amounts of iron, manganese, cobalt, and the like. Solar system design requires the right kind of star.

Perhaps one of the most exciting lessons we have learned from other solar systems is that the shape of the orbits of planets in our solar system is very unusual. Most of them have very circular orbits meaning that their distance from the Sun does not vary a great deal. Venus has an orbit that is .007 with 0 being a perfect circle and 1 is a straight line. Pluto has the most elliptical orbit, but even Pluto is less than .3 on the 0-1 scale. Our solar system design is unusual.

Circular orbits like ours are very rare in other solar systems where .7 is a very common orbital value, and virtually all orbits exceed .3. If a planet swings far out from its star and then comes much closer, it should be obvious that temperature conditions are going to be extreme. Not only will such a planet have extreme conditions itself, but it will have a very negative effect on any planets that do have a circular orbit in the system. If Jupiter came closer to the Sun than Earth with each orbit, imagine the conditions on Earth as Jupiter went by us.

We now know that our gas giant planets (Jupiter, Saturn, Uranus, and Neptune) are essential to us because their gravitational fields sweep up any debris from outer space. Without those planets, comets and asteroids would pound Earth and life here would be difficult if not impossible. The fact that they are outside Earth’s orbit at a considerable distance and in a circular orbit allows us to exist in a stable condition for an extended time. The comets that do enter our system by avoiding the gas giants do not come in along the plane of the solar system called the ecliptic. Coming in from other directions, they have no chance of hitting Earth since they are not in the plane of Earth’s orbit around the Sun.

Like everything in science, the study of the cosmos and other solar systems speaks eloquently to us about the design and planning that is part of everything in the creation. As we discover more data, other factors will surely tell us how unique our solar system design is. In the twenty-first century, we have more reasons than any humans have ever had to realize the truth of Psalms 19:1.
— John N. Clayton © 2019

June 18, 2019June 17, 2019

Sunspots and Earth’s Climate

Sunspots and Earth’s Climate Yesterday we mentioned sunspots and their potential effect on our planet. Sunspots are areas where the local magnetic field is thousands of times stronger than on the rest of the Sun’s surface. We know that sunspots adversely affect electric grids and orbiting satellites. There are unanswered questions about sunspots and Earth’s climate.

When sunspots occur, the stronger magnetic field constricts the hot plasma of the Sun, creating a somewhat cooler area. Why is it, then, that historically in times when sunspots are rare, Earth’s climate has become colder? Are sunspots the cause, or was it just a coincidence?

Scientists refer to the period from 1645 until 1715 as the Maunder Minimum, because sunspot activity was minimal. That also corresponds with the coldest years of what is sometimes called the Little Ice Age. It was not a true ice age, but the Northern Hemisphere experienced winters that were longer and colder than usual. European rivers froze, Vikings abandoned Greenland, and farmers in Norway lost farmland to advancing glaciers.

So the unanswered question concerns sunspots and Earth’s climate. Does the lack of sunspots cause lowered temperatures on Earth, or have past trends been coincidental? We don’t know, and science cannot find an explanation. Many scientists are predicting reduced sunspot activity in the coming years. Perhaps God is providing a way to counter-balance present concerns about global warming, but only God knows what the future holds.

It is interesting that the years 1643 to 1715 also mark the reign of Louis XIV of France, known as “Louis the Great.” He was also known as “the Sun King” because he chose the Sun as his symbol, and his subjects (or perhaps Louis himself) compared him to Apollo, the ancient Greek sun god. Louis the Great reigned for 72 years during the Maunder Minimum. But even the so-called Sun King could not control the Sun. Only the Creator of the Sun, Moon, and stars can do that, and only He knows if there is a connection between sunspots and Earth’s climate.
— Roland Earnst 2019

June 17, 2019June 15, 2019

Interesting Sun Facts

Interesting Sun Facts We all know some things about the Sun. We know it is powered by thermonuclear fusion, that it is a G-2 type spectral star, and that it is the primary energy source for the Earth. Many of us have seen a solar eclipse when the Moon blocks out the photosphere of the Sun and lets us see its corona. We know that the Sun is not just a ball of fire but a complex globe. Here are some more interesting Sun facts that are relatively new to us:

The light that we see coming from the Sun is from its photosphere. The photosphere is a thin incandescent layer that is just 200 miles (322 km) thick. That is less than one four-thousandth of the Sun’s diameter and is like the outer skin of an onion, only thinner than that.

The energy of the Sun is created in its core, which is a very small sphere, just one two-hundredth of the Sun’s volume. Every second that small ball emits the energy of 96 billion 1-megaton hydrogen bombs. The Sun’s weight decreases by 4 million tons every second as mass is turned into energy and radiated from the photosphere.

The Sun spins on its axis once a month, just as the Moon does. The center 70% of the Sun spins uniformly like a solid ball. The remaining 30% has different spins with the poles turning more slowly than the equator. These zones spinning at different speeds meet in a recently discovered zone 130,000 miles (209,000 km) below the surface. That zone is called the tachocline, and it’s where the Sun’s magnetic field originates.

Sunspots are areas where the local magnetic field is 5,000 times stronger than on the rest of the surface. The stronger magnetic field constricts the Sun’s plasma. When sunspots are rare, it seems that Earth’s climate becomes colder. Starting in 1645 there were few sunspots for 70 years. During that time, Earth became colder, people abandoned fishing colonies in Iceland and Greenland, and the Thames River and Venice canals went through periods of freezing solid.

As scientists probe more in-depth, they learn many interesting Sun facts. Just as in many other areas, the more we learn, the more questions we have. What effect do sunspots have on life on Earth? How can they affect our climate? What will happen in the next sunspot cycle? Tomorrow, we will look more into questions about sunspots. As we learn more interesting Sun facts, we realize the amazing design wisdom of the Creator to make life on this planet possible.
— John N. Clayton © 2019

Data from Astronomy magazine, July 2019, page 20.

June 10, 2019June 10, 2019

Jupiter Is in Opposition

June 10, 2019, is an excellent time to observe the largest planet in our solar system. The reason is that Jupiter is in opposition to our Sun.

When astronomers say that Jupiter is in opposition, they mean that planet Earth is passing between the Sun and Jupiter. At this time, Jupiter will rise in the east as the Sun sets in the west, and it will set in the west as the Sun rises in the east. In other words, Jupiter will be visible all night long, and it will be at its highest point in the sky in the middle of the night.

The picture was taken by the JunoCam on NASA’s spacecraft Juno which is currently orbiting Jupiter. NASA posts the raw images online and encourages individuals to download and process them. Citizen scientist Kevin M. Gill enhanced this one. You can find access to the raw images and see the work of other citizen scientists by clicking HERE.

When you see Jupiter in the sky tonight, it will not look like this picture, but it will be the brightest object in the sky. Jupiter is not a rocky planet like Earth. It’s a gas giant which if were 80 times more massive, would be hot enough to set off nuclear reactions in its core. Then it would be a star giving off its own light instead of just reflecting the Sun’s light. However, if you could lump all the other planets in our solar system together (including Earth), Jupiter would be 2.5 times more massive than them all.

Why do we need such a huge gas giant in the outer solar system? As we have said in previous posts, Jupiter is a comet sweeper. With its massive size and gravity, Jupiter protects us from objects such as comets coming from outside our solar system. In the 1990s, NASA observed Jupiter pulling apart and destroying comet Shoemaker-Levy 9. You can read about that in our previous post HERE. Jupiter also affects Earth’s climate cycles, which you can read about HERE.

Jupiter is in opposition about every 13 months. Last year opposition occurred in May. Next year it will be on July 14. If you miss seeing Jupiter tonight because of cloudy weather or any other reason, don’t despair. Jupiter will be closest to Earth on June 12, and it will continue to be visible, but right now it’s visible all night long.

While Jupiter is in opposition, or at any other time, look up and thank God that He has created such a marvelous and unique solar system to make life possible.
— Roland Earnst © 2019