Fun fact! Stars in a galaxy are held together by their own gravity!
The Big Bang blasted out billions of protons, neutrons, and electrons. First Let’s start with the definition of proton, neutron and electron. A proton is a stable subatomic particle in all Atomic Nuclei With a positive charge. Subatomic means smaller than an atom. A atomic nuclei is made up of nucleons (protons and neutrons) and is surrounded by the electron cloud. ... Almost all of the mass in an atom is made up from the protons and neutrons in the nucleus with a very small contribution from the orbiting electrons. Neutrons have no charge and protons are positively charged. A neutron is also a subatomic particle but with no charge. A neutron also has the same mass as a proton. A electron is a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.. Here's what happened through out the Big Bang.
1.0 seconds after the Big Bang, they could not even measure the temperature because it was so hot, they rated fire ball in my source. 2.10-43 seconds after the Big Bang they could actually tell what the temperature was. The astronomers could tell it was 1032K. K stands for Kelvin. The measure of temperature Astronomers use. 0K is -459 Fahrenheit. That is the lowest Temperature the Universe can get. At this time a lot more protons and neutrons started forming. 3.10-35 seconds after the Big Bang. The Temperature at this time was 1027K. It was still far too hot for atoms to form, but It was getting pretty close to Helium Nucleus.
Fun Fact! Some scientists think there are other universes. This is called the Multi-verse
A helium nucleus is made of two protons and two neutrons. A proton has charge +1 and a big mass. A neutron has charge 0 and a big mass. They both have strong interactions. Protons and neutrons are made mostly of up-quarks down-quarks and gluons. A gluon is a subatomic particle of a class that is thought to bind quarks together. Quarks: any of a number of subatomic particles carrying a fractional electric charge, postulated as building blocks of the hadrons. Quarks have not been directly observed, but theoretical predictions based on their existence have been confirmed experimentally. A Hadron is a subatomic particle of a type including the baryons and mesons that can take part in the strong interaction. a subatomic particle, such as a nucleon or hyperon, that has a mass equal to or greater than that of a proton.
Fun Fact! Galaxies are more likely to collide in a local group or a super cluster.
There is so many more, I am not going to tell you about them. 4.10-7 seconds after the Big Bang the temperature was still very hot. It measured 1014K. Also, it was finally time for Helium Nucleus to start forming. But, surprisingly, still way too hot for atoms. 3 minutes after the Big Bang, billions more of Helium Nucleus started forming( this is also kinda when the big stuff stars happening, in about 300000 years). At least 300,000 years after the Big Bang, finally, what you’ve all been waiting for, some of the first atoms ever to be in our universe (hopefully), were created. In a timeline of about 200-500 million years, the universe start to fully from. Some believe that the complete opposite will happen. This is of course another theory though. This Theory is The Big Crunch Theory.
The Big Crunch Theory is when all the matter and stuff in the universe will pull back together in the middle, until everything crashes into each other and disappears.
OTHER GALAXIES AND THEIR TYPES
The first galaxy in this universe was formed about 1 billion years after the Big Bang. That was a long time ago. There are many types of galaxies. But here are some of them you will see often when looking at something galaxy related. The Elliptical galaxy, the oldest galaxy, and the least brightest, and then the spiral galaxy, the barred spiral, and last but not least, the irregular galaxy. The spiral galaxy consist of a flat disk with a bulging center and surrounding spiral arms. The galaxy's disk includes stars, planets, dust, and gas—all of which rotate around the galactic center in a regular manner.
Fun Fact! There is this thing called a Quasar . A quasar is a massive and extremely remote celestial object, emitting exceptionally large amounts of energy, and typically having a starlike image in a telescope. It has been suggested that quasars contain massive black holes and may represent a stage in the evolution of some galaxies. And they are so hot, they strem out radation.
This spinning motion, at speeds of hundreds of kilometers per second, may cause matter in the disk to take on a distinctive spiral shaped like a cosmic pinwheel. Some spiral galaxies obtain even more interesting shapes that earn them descriptive names, such as sombrero galaxies. Older stars reside in the bulge at the center of the galactic disk. Many new stars also form in spiral systems, and their disks are surrounded by a halo, which scientists believe is rich with mysterious dark matter.
Elliptical galaxies are shaped as their name suggests. They are generally round but stretch longer along one axis than along the other. They may be nearly circular or so elongated that they take on a cigar like appearance.
Elliptical galaxies contain many older stars, up to one trillion, but little dust and other interstellar matter. Their stars orbit the galactic center, like those in the disks of spiral galaxies, but they do so in more random directions. Few new stars are known to form in elliptical galaxies.
The universe's largest known galaxies are giant elliptical galaxies, which may be as much as two million light-years long. Elliptical galaxies may also be small, in which case they are dubbed dwarf elliptical galaxies.