Space Fact - Milky Way Galaxy

Milky Way Galaxy. Home to planet Earth. The Milky Way is a part of a large group of galaxies known as the Local Group consisting of more than 54 gravitationally bound members. Most of them are quite small with the exception of Andromeda, the Milky Way and Triangulam.
A few billion years into the future,these larger members will collide and eventually form a much larger galaxy nicknamed Milkdromeda.
Now lets go much further into the future, about 100 billion years from now. Imagine that somewhere within Milkdromeda, a habitable planet gives rise to a civilization of intelligent beings much like ourselves. At some point they invent a powerful new telescope which will allow them to explore space beyond the galaxy. But as they peek through the telescope, they find nothing. Nothing but darkness and empty space. They come to understand that they exist within a seemingly endless and almost informationless void.
Milkdromeda would appear to be a bastion of light in a sea of darkness. It may sound like science fiction but it's actually a very plausible future. As the age of the cosmos approach 100 billion, the expansion of the universe will cause all other galaxies to vanish beyond the cosmic light horizon. This means that light from other galaxies will no longer be able to reach us.
COSMIC LIGHT HORIZON
Put another way galaxies will be pushed outside of the observable universe and can thus no longer be observed. Everything outside of the Milkdromeda galaxy will be virtually erased from existence. Just like observers in other galaxies will experience the exact same phenomenon.If you think about it, we are rather fortunate to exist at a point in time when we have access to such an abundance of information.
Hubble Telescope 
The distant future of 100,000,000,000 CE however, would be so information deprived that when they aim their equivalent of the Hubble telescope towards a seemingly empty region of space, the returned image would also be empty.
And even though many questions could still be answered by studying other phenomena, like hypervelocity stars and cosmic microwave background, so much of the universe would be out of reach and, consequently, unknowable.

Of course, the same is true today. We have no way of knowing what lies beyond the observable universe.So just as we imagine our populated bubble to be a reflection of what lies beyond, intelligent inhabitants of an isolated Milkdromeda may do the same.
Follow Us


A person with positive attitude towards life in every situation

Comments

Post a Comment

Message

Popular posts from this blog

Components of Computer Network

Image
Components of Computer Network  The  components that make up a computer network are -  1. Client  2. Server  3. Middleware  4. Router and Switch  5. IP address  Client - Client is a computer that retrieves information from or uses resources provided by the server or main computer. Server - A server is an instance of a computer program that accepts and responds to requests made by client.  Servers are used to manage network resources.  For example, a user may setup a server to control access to a network, send/receive e-mail, manage print jobs, or host a website.  Application Servers  Audio/Video Servers Chat Servers  Fax Servers  FTP Servers  Groupware Servers  IRC Servers  List Servers  Mail Servers Proxy Servers  Telnet Servers  Web Servers Middleware is the software that connects two otherwise separate applications. Most network...
Read more

Negotiable Instrument - Cheque

Image
Characteristic Features of a Cheque -  A cheque is always drawn on a banker or in other words, the drawee of a cheque is always a bank. It is always payable on demand and does not require acceptance. Cheques may be payable to the drawer himself. It may be made payable to the bearer on demand unlike a bill or a note. The banker is liable only to the drawer. A holder has no remedy against the banker if a cheque is dishonoured. Cheques are exempted from payment of stamp duty, unlike certain classes of bills. A grace period of 3 days is allowed for a Bill. There is no such provision for a cheque. A cheque can be drawn where the drawer has a bank account. A cheque is valid only for three months from the date of the cheque. Dishonour of Cheque   A cheque is said to be dishonoured, when it is not paid when demanded for certain reasons.  Some of the reasons why a bank dishonours a cheque Where the drawer countermands payment or stops payment of the cheq...
Read more

Avionics - Typical Electronic / Digital Aircraft System

Image
General electronics/digital aircraft systems are -  ECAM (Electronic Centralized Aircraft Monitoring) EFIS (Electronic Flight Instrument System) EICAS (Engine Indicating & Crew Alerting System) FMS (Flight Management System)      ECAM (Electronic Centralized Aircraft Monitoring) An  electronic  centralized  aircraft monitor  (ECAM) is a system, developed by Airbus , that monitors aircraft functions and relays them to the pilots.  ECAM produces messages detailing failures and in certain cases, lists procedures to undertake to correct the problem. Airbus developed ECAM, such that it not only provided the features of (Engine Indicating and Crew Alerting System)EICAS, but also displayed corrective action to be taken by the pilot, as well as system limitations after the failures. Using a color-coded scheme the pilots can instantly assess the situation and decide on the actions to be taken. ECAM was  designed to...
Read more