Notice: If you have something to add to this artlcle, or if you want me to link to your article on astronomy, please send me an email. My email address is at the bottom of this page.

Also at the bottom of this page I link to two other online astronomy dictionaries!!!

Here is a blue link to my main article on astronomy:
Article: Astronomy


Dictionary Of Astronomy And Cosmology (I Have Links To Two Other Online Astronomy Dictionaries At The Bottom Of This Article)


Astronomy - The study of celestial objects that we see in the sky with earth-bound telescopes or telescopes in space (e.g. the Hubble Space Telescope). Of course the James Webb Space Telesope is coming and it will be about 100 times more powerful than the Hubble Space Telescope. These telescopes are named after well-known and well-respected astronomers.

America is not the only country that has telescopes in space. In fact, there are more than 100 space telescopes, but the American space telescopes are arguably the best by far. The Hubble and soon the James Webb space telescopes have no competition that I know of.


Big Bang - Due to the discovery of Cosmic Microwave Background Radiation, and for other reasons, the Big Bang is generally accepted as the explosion that created the Universe.


Black Holes - Every galaxy supposedly has a supermassive "black hole" at its center. Black holes are very, very small, but their gravitation power is unimaginable, supposedly equal to several million or even billions of Suns.


Bubbles - there may be different kinds of "bubbles" in different places. But this aricle is about one type of bubble:
Article: Huge Bubbles Found At Milky Way's Heart Could Signal A Black Hole Eruption

Well, they don't have a clue what they are talking about, but neither do I.


Bubbles - also copy and paste this into Google without the quotes
Bubbles in space


Cosmology - The study of why things in outer space have happened (e.g. why the Big Bang happened).


Dwarf Planets - While there are many dwarf planets in our solar system, the number of dwarf planets depends on where you draw the line!!! Currently there are only five official dwarf planets:
1) Pluto
2) Ceres
3) Eris
4) Makemake
5) Humea

All of the dwarf planets that I know of are in the Kuiper Belt.


Exoplanet - A planet which is orbiting a sun (i.e. star) which is outside of our Solar System. Nearly 4,000 exoplanets have been discovered and thousand more are under consideration.


Eggs - dense, compact pockets of interstellar gas called evaporating gaseous globules (EGGs). Hubble found the "EGGs," appropriately enough, in the Eagle nebula, a nearby star-forming region 6,500 light- years away in the constellation Serpens.


Galaxies are the main component of the Universe. There are estimated to be 1,000,000,000,000 (one trillion) galaxies in the Universe!!! Of course it is thought that the Big Bang created these galaxies, though many galaxies are currently under construction (see the word "Nebula" below).


Habital Zone - the orbital region around a star in which an Earth-like planet can have liquid water. This term is used in case there are other inhabited planets (and I am sure there are many of them).


Hot Juipiter - This is a Jupiter type of planet (i.e. a gas giant) which is orbiting another star. This type of planet orbits its star much more closely than Mercury orbits our Sun so a Hot Jupiter is much hotter than Mercury. See the phrase: "tidal locked".


Hotter Than Hell - a phrase I use for a celestial object which might be used by God as a very painful punishment caused by excessive heat!!! Mercury, Venus, Hot Juipters, etc. would qualify as being hotter than hell!!! The phrase "Outer Darkness" (see below) is actually a phrase used by the Savior to describe massive punishments. I am not aware that the Savior described any punishment as being very hot, but it is hard to image that such punishments do not exist.


Kuiper Belt - This is a spherical section of our solar system, with the Sun at the center, which essentially begins with Pluto and the other dwarf planets. This section of our solar system includes perhaps a dozen dwarf planets and for some distance beyond these dwarf planets. It is an area of our solar system that has a lot of chunks of ice and chunks of rocks (some are dwarf planet sized). There is a gigantic empty space between where the Kuiper Belt ends and the Oort Cloud begins. For more information see the article on Outer Darkness:
Article: Outer Darkness


Life - Astonomers fairly frequently claim that "life" came from a supernova or some other astronomical event. While many chemical elements on this planet likely came from supernovas, "life" itself did not come from a supernova!!! Astronomers don't have a clue what they are talking about!!! Yes, key chemical elements for life may have some from several sources, but life itself comes from cells!!!! No supernova ever created a cell, much less a living cell!!! I don't know of any astronomer who knows anything about cells, much less how cells combine together to create a living thing!!! LIFE/CELLS CAME FROM GOD!!! This is another example of how scientists want to distance themself from those who believe in God.


Nebula #1 - A nebula is an interstellar cloud of dust, hydrogen, helium and other ionized gases where stars are formed. Here is an excellent article by NASA on nebula:
Article: What Is a Nebula?

Nebula #2 - There are about 20,000 Nebula in the Milky Way Galaxy. The "Eagle Nebula," also known as the "Star Queen Nebula," is a good example.

Nebula #3 - An example of how they form would be gas and dust thown out by the explosion of a dying star, such as a Supernova.

Nebula #4 - Here is my question: When a star if formed in a Nebula, how does that star get moved from the Nebula to where it belongs in the Galaxy??? Well, Boy Scout troops are not the correct answer!!! Nor are moving companies that move furniture from one city to another city. Sorry, the answer is God!!! That is the problem with astonomers, they never give God any credit. Gee, that sounds just like the theory of evolution applied to outer space!!


Neutron Star - A neutron star is the collapsed core of a giant star which before collapse had a total mass of between 10 and 29 solar masses. Neutron stars are the smallest and densest stars, excluding black holes, hypothetical white holes, quark stars and strange stars. Wikipedia
Wikipedia: Neutron Star

In other words, only black holes are more dense than neutron stars!!!

Also see:
SciTechDaily (many articles on different subjects)


Oort Cloud - This section of our solar system is far, far, far beyond the Kuiper Belt!!! For example, imagine a gigantic beach ball as tall as the Empire State Building. At the very center of this beachball is a BB (yes, which BB guns shoot). The BB would represent our Sun and the beachball itself would represent the Oort Cloud. It is a gigantic spherical area of planets, rocks, ice, and who knows what else. This is also discussed in the article on Outer Darkness:
Article: Outer Darkness


Outer Darkness - a phrase used by Jesus Christ three times in the Bible in the book of Matthew. The article I link to talks a lot about the Kuiper Belt and the Oort Cloud and the concept, introduced by Christ, of Outer Darkness!!! I have an article on this phrase on this website:
Article: Outer Darkness


Planets From Hell (buzz word) - You definitely want to Google this phrase: "Planets From Hell"
You will get about 11,000 hits - very interesting stuff. Venus is a planet from hell in our solar system because its thick clouds keep the Sun's heat on Venus. Because of this Venus is a lot hotter than Mercury!!!


Pulsar - Pulsars are rapidly rotating neutron stars formed in supernova explosions, which occur when a massive star reaches the end of its life and explodes. ... Scientists have assumed that the spin was caused by the conservation of angular momentum from a star that was spinning before it exploded.

Here is another take on Pulsars:

  • "Pulsars are small, rapidly spinning neutron stars left over after a star roughly eight times more massive than our own sun dies in a supernova, a spectacular stellar explosion. As pulsars rotate, particles are ejected along their poles.

    And while "normal" pulsars rotate tens of times per second, there are millisecond pulsars that can rotate hundreds of times per second, something astronomers didn't even think was possible until the first discovery made in 1982.

Here is an artist rendition of a Pulsar:
Article: Astronomers find fast-spinning 'clocks in the sky' using gaming tech


Quasars are the brightest objects in the Universe. Quasars live only in galaxies with supermassive black holes; black holes that contain billions of times the mass of our sun. Although light cannot escape from the black hole itself, some signals can break free around its edges. While some dust and gas fall into the black hole, other particles are accelerated away from it at near the speed of light. The particles stream away from the black hole in jets above and below it, transported by one of the most powerful particle accelerators in the universe.

Here is an artist rendition of a Quasar:
What is the difference between quasars, pulsars and neutron stars?


Rogue Planet - This is a planet that is in space but it does not orbit around any star (i.e. any Sun). Here is a very good article on this subject:
Scientific American: Wandering in the Void, Billions of Rogue Planets without a Home.

Anyone who is standing on a rogue planet, by themself, will know the ultimate definition of "darkness", and they will be very, very cold and unbelievably lonely!!! I mention this because being on a rogue planet may be one of the punishments called "Outer Darkness by the Savior Jesus Christ three times in the Book of Matthew in the Bible.
Article: Outer Darkness


Supernova - This is the death of a giant star!!! First the star implodes and then it EXPLODES. A supernova is a powerful and luminous stellar explosion. This transient astronomical event occurs during the last evolutionary stages of a massive star or when a white dwarf is triggered into runaway nuclear fusion. A supernova can briefly create more light than the light from an entire galaxy!!!

It is very, very, very rare when astronomers see a supernova when it begins because the exposion is never predictable in advance. In order for astronomers to be guaranteed to see a supernova they would have to have enough telescopes to see every one of the trillion galaxies that we know about, continuously, for 24 hours a day year around for both land and sea and oceans!!! Ain't going to happen!!!
What Is a Supernova?


Tidal Locked - a planet which is a Hot Jupiter and the same side of the Hot Jupiter is always facing the star!!! The heat on that side of the planet would be unimaginably hot!!!


Venus - while Venus is a obviously a planet in our solar system, I mention it because Venus is much hotter than Mercury!!! How can this be so??? The reason is that Venus has thick clouds that trap the heat from the Sun, thus making it "hotter than hell"!!!


Things That Could Wipe Out Humanity In a Heartbeat!!!

Weird Stuff - Gamma Rays - I do not think there is any end to the weird stuff in the Universe. Here is an article about one of the weird things going on:
One of the Fastest-Spinning Stars in the Galaxy Is Spitting Out Gamma Rays


Weird Stuff - Cosmic Rays - Your umbrella won't protect you from these things:
What Are Cosmic Rays?


Weird Stuff - Pulsars - These are other things your unbrella will not protect you from:
Astronomers Catch A Pulsar Glitching


Weird Stuff - Quasars - Many astronomers consider that quasars will end humanity in the blink of an eye. They certainly could!!! Well, they will have to stand in line!!!
Article: Quasars: Brightest Objects in the Universe

More On Quasars
Article: Quasars in the Neighborhood


Weird Stuff - A List - This would not be my "top 6" things that could wipe out humanity, but it is a very good list:
Article: Six cosmic catastrophes that could wipe out life on Earth


My Comments About What Will Wipe Out Humanity First (The Race Is On)

Many people, including myself, believe that God exists and that God will protect His children from the many events in the Universe which could wipe us out in a heartbeat. So I don't lay awake at night wondering if some Quasar or Asteroid or Supernova, etc. is going to wipe out humanity. We are perfectly safe!!!


About More Extensive Online Astronomy Dictionaries

While there are many dictionaries of astronomy, the best way to search for them with Google is to use the search phrase (with the quotes): "Astronomy Dictionary".

Here is a very good online astronomy dictionary by Sky At Night Magazine:
Astronomy Dictionary

I cannot imagine a better online astronomy dictionary than this one (it is on one very big page as far as I can tell):
The Guide To The Universe / Astronomy Dictionary


Let me know if you have anything to add to my list!!!

Here is my email address, which is camouflaged to avoid web crawlers.


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