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.

You can see it too: a star is changing

A week or so ago I was getting out of the car parked on the curb outside my house and looked up. I had heard about Betelgeuse, one of the stars in the Orion constellation. Lately it was growing dimmer. I wanted to see if I could notice it and sure enough I could. With the naked eye.

You can too because this is one of the more noticeable stars in the sky.

Most people that look up at the sky at night in the northern hemisphere are familiar with Orion’s belt, three stars in a closely near straight line. Above that line there are two stars and below that line there are two stars. The star in the upper left is Betelgeuse, and it’s different than it was even a few months ago.

Betelgeuse is a very big star many many times larger than our own sun. It is expected that this star will explode one day and although it’s unlikely to do it within our lifetime, this dimming of the star and it’s exceptionally orange color visible with a naked eye it does indicate that Betelgeuse could be near to going supernova.

So now you know how to find it, go out and look at it the next time it gets dark around your house and the sky is clear.

Intergalactic travel is possible according to Einstein

Scientist discover that intergalactic travel is possible according to Einstein. The special theory of relativity suggests that given an unlimited amount of fuel intergalactic travel is possible.

Although an unlimited amount of fuel is not available, theoretically, according to the laws of physics, accelerating at such a rate that 1G astronauts throughout the journey could visit other galaxies.

The drawback is that by the time they returned Earth would be gone or all life on Earth would be extinct. This is because as their speed accelerates according to them, time dilates according to the people on Earth. Thus 76 years would seem like thousands of years on Earth.

So as time travel is indeed possible, it just has some small drawbacks to Earth dwellers.

Our Little Ball

Sitting here on our little ball, a tiny speck around we go. Orbiting the sun is falling to, missing it and around we sail.

Still we sit, never gone far. Looking out at all the stars. Figured much about all that’s there. Smart peeps we seem to be.

We look to see if there are others. Haven’t found anything but still we hope. Not a fossil of a microbe has been found. Is that’s all there is? We really hope not.

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.

Everybody in the Know is talking about Black Holes

Forget the Mueller reports, President Trump, Democrats vs. Republicans and Make America Great or Small.

The big news is the black hole now visualized by astronomers and pictured here.

First black hole ever imaged.

Everyone is “astonished” by the clarity of the image, but let’s admit that is’s pretty blurry. That having said it’s in a different galaxy and thousands of times more distance than our own super-massive black hole in the Milky Way Galaxy.

But idiots here on Earth, brainwashed by political propaganda, are all about what’s going on with the Mueller report. Yes, the president is an idiot and guilty. Get over it. Look above.

The First Day of Spring

Never happened.

There is no first day of spring. There is a spring equinox. This spring of 2019 it will be March 20th at 4:58 PM Central Daylight Time (future tense as of time of writing). Adjust accordingly for your time zone.

Equinox is when the days and nights are of equal length. There’s two equinoxes: Spring and Autumn. It happens to be when Earth passes a particular point in orbit around the sun. This year, that moment will be at March 20th and 4:58 PM CDT. After that moment we enter the spring season, and days in the Northern Hemisphere will officially be longer than nights.

I recognize this is the Internet and many will read this after the fact, but the principle remains the same. There is no official first day of spring. There is only the moment of the spring equinox.