How big is the Moon compared to the Sun and Earth?

by Wayne Boyd

This is an interesting question. I’m going to answer it with illustrations.

In answer to “How big is the Moon compared to the Sun and Earth?” I’m going to give you some illustrations that will put all of this into perspective. First, let’s look at a comparison of our Moon with Pluto and other dwarf planets in our solar system. Here’s a picture to illustrate.

So here you can see our Moon is quite large! In fact, it’s so large, it’s bigger than all of the known dwarf planets in our solar system, including Pluto!

Even though the Moon is bigger than Pluto, it’s not big compared to Earth. Here’s the comparison of that.

So the moon is relatively small compared to our big Earth. But when you bring the Sun into the mix, then you have to understand that Earth itself is not very big. In fact, the Sun is so big it dwarfs even Jupiter. Here’s the image of that comparison:

So to sum up, our Moon is big compared to Pluto and other dwarf planets in our solar system, but small compared to Earth. Earth itself is like a pebble of sand compared to the size of our Sun. Fortunately for us, the sun is also a long way away, and therefore looms the same relative size as the Moon in our sky.

I hope that sheds some light on the subject! Thanks for asking a cool question.

Is anybody out there?

In fact, had a giant asteroid not killed off the dinosaurs, homo sapiens might never have evolved. If it weren’t for that chance cataclysmic encounter from space, Earth might even now be ruled by dinosaurs.

By Wayne Boyd

In the early days of Hollywood and television, we used to think that life on other planets was common. Science fiction movies about invasions from the planet Mars or Venus were normal. HG Wells wrote War of the Worlds which later became a radio show and still later several big screen adaptations and it was about Martians invading Earth.

Even as our imagination thrived our knowledge of the cosmos grew. We sent probes and rovers throughout the solar system and beyond. We gazed into the stars with our space telescopes. We took images from non-visible light and radio waves. Great minds like Einstein and Hawking churned it over. Finally, after all that, we came to a startling if not disappointing realization: Planets other than Earth that support life, if they exist at all, appear to be the exception rather than the rule. There is no warmongering Martian civilization waiting to invade Earth. There are no lovely ladies lounging around on Venus. It’s true not only for our own solar system, but for all the exoplanets we’ve detected so far.

Our understanding of distances in space developed, especially between stars. Distances, it turned out, were vast. The more we knew the less likely it seemed anyone would go star hopping. That not only applies to us, but the aliens as well, if any extraterrestrial sentient beings exist at all! There will be no warp drives, no faster than light travel, and no light speed travel. It just isn’t possible. We can’t go there and they can’t come here.

Recently, there’s been some reports of UFOs in the news, and that’s always been there from the 1950s on. There is no evidence that unidentified flying objects are extraterrestrial in origin. It is unlikely for the simple reason that to travel from one star to the next would take tens of thousands of years. Sadly, and perhaps fortunately, no one is traveling from star to star. The best we can hope for is that we can visit other planets in our own solar system. Maybe one of them might at least have some microbes.

Once we figured out that there wasn’t much chance of advanced, intelligent life elsewhere within our own solar system, then we hoped we would find it on planets around other stars. Remember the movie Avatar? Supposedly that took place around Alpha Centauri, one of our closest group of stars. So if we can’t find life here then for sure it’s going to be on the closest star!

Yet, as we peered into the solar systems of other stars we came to a new understanding: most planets that we’re able to detect outside of our own solar system are hostile environments. There’s something weird about almost all of them, and so the prospect of finding life orbiting on a planet near our closest star is kind of unlikely. There’s no “Avatar” on Alpha Centauri.

Intelligent alien life is not impossible. The universe is a big place. The point is that we now know it to be rare. So rare, in fact, that it might exist nowhere other than here. At least as far as we can see so far.

In fact, had a giant asteroid not killed off the dinosaurs, homo sapiens might never have evolved. If it weren’t for that chance cataclysmic encounter from space, Earth might even now be ruled by dinosaurs.

Therefore, even if a planet were in an ideal goldilocks region around it’s star, and even if on the off chance single cell organisms had developed there, we have no reason to suspect that a homo-erectus kind of being might have developed there.

We really could be the only ones out there.

How would humanity react if there was a giant drawing of Pluto the dog on Pluto the dwarf planet? Would people pay much attention?

Probably! Especially since Pluto was not named after the dog Pluto, but after the Roman god of death, Pluto, since it was farthest from the sun and therefore considered to be very cold. Pluto used to be considered a planet, rather than a dwarf planet, and historically the planets were named after Greek Gods.

As for Pluto and dogs, Pluto has a few moons, one of which is named after a dog. Kerberos is named after the multi headed dog who is supposedly guarding the entrance to the underworld (in Greek mythology).

Here’s Pluto and it’s moons.

Will we find evidence Human-Like species once lived on Mars?

Will we find evidence Human-Like species once lived on Mars? Personally, I highly doubt it. I’m not even sure we will find evidence of ANY kind of past life on Mars, even microbial. If we even found evidence of a fossil of an extraterrestrial microbe on Mars, or for that matter on a meteor or anywhere else that originated somewhere other than Earth, it would completely revolutionize science and religion and be a huge culture shock for millions of people.

Would Elon Musk be the most important person to have ever lived if he successfully colonized Mars with 1 million people?

If Elon Musk did colonize Mars with 1 million people, would he be the most important person to have ever lived?

I would then think of him like maybe Christopher Columbus, or the Pilgrims from England that started populating North America. Outside North America these people are not seen as important (or even known). Schools in other parts of the world don’t teach much about this.

Here in America, however, we have Columbus day to remember the crossing of the Atlantic in 1492 by Christopher Columbus, and Plymouth Rock in Massachusetts to remember the first landing of the Pilgrims who came from Plymouth, England. We have Thanksgiving to remember a mutual celebration between the Pilgrims and the local Native Americans after the Pilgrims had their first successful growing season.

So I would say that to the people of Earth Elon Musk would not be the most important person to have ever lived, but to the people of Mars he would be the most important person for the first few generations, but as time passed he would be seen from an historical point of view and remembered on future Martian calendars by the people of Mars.

Here on Earth he would be remembered in history books, too, but so many people have come and gone in the history of mankind. Many people in the past have been very transformative, but overall are not seen as the most important persons. People like Alexander the Great, Issac Newton, Albert Einstein, Walt Disney, George Washington, Queen Victoria, ad infinitum, have all been very important in the history of mankind, but none stand out over time as the most important person to have ever lived. So will it be with Elon Musk even if he did colonize 1 million people on Mars.

How come if we flew to the Moon, nobody ever tried to fly underneath the Earth to see what’s really down there?

Hehehe….. Did someone actually tell you nobody has ever flown around the earth pole to pole?

That’s why you should check your facts before believing conspiracy theories! A good place to start is by going to to do your fact checking.

Not only do some satellites pass “underneath the Earth” to see what’s really down there, so have many airplanes. Furthermore, people live down there, past that “wall of ice” at the South Pole.

Here’s a picture of what it looks like for real.

Why is the Moon not being pulled into the Earth from gravitational forces? Is the Moons mass stopping gravity from pulling it any further?

The Moon is being pulled toward the Earth, but it’s forward momentum causes it to miss Earth each time it goes around by a wide margin. This is called an orbit.

However, let it be known that because the oceans slosh around on Earth as it rotates about it’s axis (these are called ocean tides), the speed of Earth’s rotation is gradually slowing down. Billions of years ago a day on Earth was only about 8 hours, and now it continues to slow down. We compensate this twice a year by adding leap-seconds as needed.

This slowing of the earth’s rotation causes the moon to drift further away from us every year by about 1.5 inches, so eventually the Moon will escape Earth altogether and drift away.

It will never crash into Earth.

The Universe is a very big thing…

When will the next Super Blood Moon be seen in the U.S.?

So you know what a blood moon is? It’s when the moon moves into the shadow of the earth (a total lunar eclipse), which causes the moon to grow fairly dark and at the same time pretty reddish as the image below shows.

A red moon, sometimes called a blood moon, takes place during a total lunar eclipse when the moon moves into the shadow of the earth and turns red color and quite dark.

Next, do you know what a supermoon is?

The moon has a slightly elliptical orbit around Earth. Sometimes full moons are further away and appear slightly smaller from Earth. Sometimes full moons are slightly closer to us and they appear larger. When the latter happens it’s a super moon.

The moon’s orbit around the earth is elliptical. The closest approach is called the perigee and the farthest point is the apogee. If there’s a full moon during the perigee, the moon appears larger and is called a supermoon.

A super blood moon simply means when the moon is slightly closer to Earth because of it’s elliptical orbit and it passes into the earth’s shadow. The last one was on January 20, 2019, and will be the only one in 2019.

The next total blood moon lunar eclipse won’t be until May 26, 2021, but it will not be visible from the United States or North America. North and South America won’t see a total lunar eclipse again until May 16, 2022. It will not, however, be a super moon at the same time. For that you’ll have to wait about 19 years.

Do you know if NASA has evidence of alien life?

Yes, I do know the answer to this. It’s no, NASA has no evidence of alien life to date. We only have theories and speculation, but without evidence there is no proof of alien life anywhere else in the universe other than good ol’ Earth.

That being said, most scientist believe life probably exists elsewhere in the universe, but until we actually find even a fossil of a microbe of alien life, there’s no evidence to date.