I wanted to talk about numbers. Big numbers. First lets start with the sun. 1 star. Its giant. I mean humongous. 432,690 miles. For comparison the Earth is 3,958.8 miles. That means the sun in terms of miles is 110 times the mileage. The Sun weighs about 333,000 times as much as Earth. It is so large that about 1,300,000 planet Earths can fit inside of it. Earth is about the size of an average sunspot! When you consider numbers like this it is already difficult for the human mind to wrap its head around something like this.




It may be the biggest thing in this neighborhood, but the sun is just average compared to other stars. The sun contains 99.86% of all of the mass of the entire Solar System which leaves just .14% to all the planets we see in the solar system (including Jupiter) I dont want to sit here and talk about the Sun and out solar system all day. I just wanted to set the scene for the rest of the post. The sun is giant to us. But in the grand scheme of the greater Universe we see that the Sun is actually just a little kid in a sea of giant stars. Even some 1000 times the size of our sun. Incredible. 




The milky way is the galaxy our sun resides in along with us and all the planets of our solar system. We revolve around the sun. The sun revolves around the center of the milky way which many believe is a huge black hole which is likely true as gravity is immense in this center mass. We can tell because over 1 billion stars revolve around the galactic center. In order for this to happen gravity must be present and abundant. A giant black hole is the perfect explanation and the one that holds the most logic in my opinion. 




There are 2 million MILLION galaxies in the known universe. Which likely means there are at least 2 times that many. I am assuming light has not had to opportunity to reach us from across the cosmos and our estimate of the age of the universe is largely based on the flawed notion that 14 billion is as far as we can see so that must be the age of the universe. Problem with that is the universe is expanding faster than light. That means that there is almost certainly light that has not reached us at all yet. Or may never reach us. So I dont even know how to write 2 million million. I assume its like this??? 2,000,000,000,000. Or 2 trillion. So lets do a bit of math shall we?




Okay 2 trillion is the amount of galaxies scientists assume fill the universe. That is a lot of galaxies. You could not count that high if you started counting from birth til your death at 100 years old. That shows you how big of a number just the amount of galaxies there are. Now lets figure out the amount of stars or a rough estimate. 2 trillion times 1 billion... My calculator wont even go that high lol.. 




2e 21. That is a 2 with 21 zeroes following it. 2,000,000,000,000,000,000,000. This is just a rough estimate of all the starts in the known universe. Now that we know that lets say that just 3 planets average are with each star (Im severely underestimating the amount of planets because so little is known about how many planets are with stars on average) so multiply that giant number above by 3. 




6,000,000,000,000,000,000,000 planets spread across the universe. Incredible!




So you dont believe another planet can support life? LMAO. With numbers like this it is inevitable. Life is logically spread far and wide across the universe. We may never see another alien life form. But with numbers like this its safe to assume we are not alone. Quite the contrary in fact. This has been another episode of space facts from your buddy HeisenbergBTC. Have a great weekend yall





COMMENT

22

awal ramlee
13 Nov

We are so "tinute" minute yet we act as the universe belongs to us like we created the universe and given the chance will want to be instrumental for destroying the whole universe.  That is what is difficult to understand.

2

Hira Shafi
13 Nov

Your post is meaningfull and you are right that This is just a rough estimate of all the starts in the known universe. Now that we know that lets say that just 3 planets average are with each star

8

Humaira Khattak
13 Nov

Yes,  you are right and agreed with you with this regard. As you know that this is the information about Sun and earth related to physics and I'm a medical students 

12

Matthew Rosenquist
13 Nov

As I understand it, the estimated age of the universe is not determined by 'how far' we can see light, but rather by calculating the speed of the expansion of the universe.  Played in reverse, we can extrapolate when everything was together before the big-bang event.  

11

Andrzej Wawrzyniak
14 Nov

Our star is indeed quite small, especially compared to M-class red giants that can have diameters far larger then the Pluto's orbit. Also, our solar system is quite small (and light, as in not having much mass) - most star systems are actually binaries, a single is not that common as it turns out. There are even triple systems - Alpha Centauri, the closest know star to our own, is a triple star system, with planets as well. 

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