Hey Fella! How are you? I am back again in the same place in Physics Everywhere. Again I brought to you the next installment our series of 100 amazing and Interesting Facts about the universe.
This part of the series is a compilation of celestial objects especially. Here we will discuss few of the special objects in the Universe worthy of including here.
As we have talked earlier, our universe is a place of mysteries. Mysteries which is fascinating the scholars day by day.
We have collected such mysteries and facts in this series. You can read the entire series by clicking the links below.
- Part6- 100 Amazing and Interesting Facts About the Universe – Part 6
- Part5- 100 Amazing and Interesting Facts About the Universe – Part 5
- Part4– Amazing facts of the Universe Part 4
- Part3– 100 Amazing and Interesting Facts About the Universe – Part 3
- Part2– 100 AMAZING AND INTERESTING FACTS ABOUT THE UNIVERSE – PART 2
- Part1– 100 amazing facts of the universe part 1
So, without wasting any time we must start with the main topic. So here is the 10 amazing and interesting facts of about the universe
Ceres comes under the category of a dwarf planet. It was not always categorized as a dwarf Planet, not until 2006.
Being bigger enough to be named as an asteroid, scientists considered it as a dwarf planet in 2006 when the definition of a planet was restructured.
Ceres was the 1st asteroid which was discovered on Jan 1st, 1801. In the initial days, scientists considered it a planet. But, after 49 years they reclassified it as an asteroid in 1850.
As I told earlier, it is big enough to count as an asteroid. Ceres is 940 kilometers in dia and it is the biggest object in the asteroid belt between Mars and Jupiter.
Triton holds the title of the biggest moon of planet Neptune. It is the first moon of Neptune that has been discovered. It was discovered on 10th October 1846 by an English astronomer William Lassell.
It is the only large moon with a retrograde spin. To make you understand, retrograde spin occurs when an object spin in the opposite direction of its parent planet of sun. It means triton has a spin opposite to that of Neptune.
There is one more amazing thing about Triton and that is, due to its retrograde spin and composition almost similar to Pluto it was thought to be a dwarf planet pulled out from Kuiper Belt.
Triton is the one of the few moons thought to be geologically active.
Europa is the smallest one of the four Galilean Moon orbiting Jupiter. By the distance from Jupiter, it has the 6th Position in its Jovian system.
By the size, Europa is the 6th largest moon of the solar system.
Galileo Galilei discovered Europa in 1610. It got the name Europa after the lover of Zeus ( The Greek Equivalent of Roman Gods Jupiter ).
Jupiter’s moon Europa may have oceans of water beneath its dry surface and it is a major target in the search for life in the Solar System.
If we talk about the Definition of the Neutron Stars, these are the smallest and densest stars in the solar system.
These kinds of stars are made when a giant star collapsed to its core. They amazingly dense, a neutron star with a diameter of 10 km can have a mass of 1.4 solar mass. Let me inform you, a solar mass is equal to the mass of the sun.
There is an interesting part here, how do these stars make. These stars are a result of the supernova explosion of a massive star.
Neutron stars are so dense that taking a sample of neutron stars materials of the size of a matchbox would weigh around 3 billion tonnes.
They have a strong magnetic field, strong enough to be 10^8 to 10^15 times stronger than the earth.
What are sunspots?
Sunspots are the phenomenon on the sun where a particular area seems darker than the surrounding area. This darker area exactly seems like a spot on the sun.
Basically, these spots on the sun are a region of reduced surface temperature.
How did it come to reduced surface temperature? This is because of the magnetic field flux which creates convection, and this convection transfers the heat to the nearest areas.
A sunspot or a group of sunspots may lasts from a few days to a few months, and then suddenly decays.
Its sizes may range anywhere from 16 kilometers to 160000 kilometers.
We all live in the Milky Way Galaxy. If we consider the universe as the world then a galaxy is just like a country.
So, we live in the the country named as the Milky Way. If we are considering the Milky Way as a country in the world of the Universe, then there must be a neighboring country to it.
What is the neighboring galaxy to the Milky Way?
Andromeda. Yes, it is Andromeda, the nearest galaxy to the Milky Way.
Don’t be confused with the word nearest. Here, nearest doesn’t means just a few kilometers apart.
We are talking about the objects in the Universe that is infinitely huge. Here the nearest means no other galaxy is nearer than the Andromeda.
Despite the nearest, Andromeda is still 2.5 million light-years away from the earth.
There is an estimate of around one trillion stars in the Andromeda or the twice the number that of the Milky Way
It is expected with the movement of both the galaxies that the Milky Way and the Andromeda are going to collide in around 4.5 billion years. This collision will create a giant elliptical galaxy or a large lenticular galaxy.
In the last point, we talked about the country in the world of universe. Now, it is the time of a continent.
Assuming the universe as world, if a galaxy is a country then a cluster is a continent. We living the Milky Way galaxy which is our country then in which continent this country belongs?
It belongs to a cluster named as Virgo Super Cluster or the Local Super Cluster.
Now, what is a cluster actually?
A cluster a mass concentration of galaxies.
Very famous two galaxies, the Milky Way and the Andromeda are a part of this super cluster. Apart from this major galaxies, there are at least 100 other galaxy groups in this cluster.
It is a group of galaxies which are a huge object in the sky. Then just think what would be its size?
Talking in diameter, Virgo Super Cluster is 33 Megaparsec wide. This makes around 110 million light-years.
Very first, we need to know about the supernova. What is a Supernova?
In one line, it is an explosion. Now, what kind of explosion is it?
This explosion is the last evolutionary stage of a massive star. After this explosion, a star either becomes a neutron star or a black hole.
An average supernova releases more energy in one second than the Sun will over its entire 11 billion year lifetime… By ten times.
Also, there is one supernova in the galaxy roughly every 50 years, which means that across the universe one supernova occurs every second.
There have probably been over 50 by the time you’ve read this far.
Since we know how the universe and our Milky Way smells like.
We came a bit closer to home and found out that our moon smells too.
Astronauts who visited the moon while on the Apollo mission described the smell of moon powder as that of gun powder!
The source of this smell had not been discovered yet.
A planet where it rains glass
NASA’s Hubble space telescope has discovered a planet situated 63 light-years away called HD 189733b.
This most interesting phenomenon happening on this cobalt blue planet is the sideways glass rain.
Droplets of glass are continuously raining on this planet and it’s raining sideways due to the 5,500 mph wind that is blowing on its surface.
Well we talked about the 10 amazing and interesting facts about the universe in this article. The universe is still a mystery for us.
We hardly see the 4% of it. within this 4 percent, we don’t know about all of it. There are a lot to explore, a lot to discover.
We only tell you what we know, but there still a lot to know. We will keep updated with these facts and stories.
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