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A Walk through the Cosmos

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Ben Adityan

on 5 January 2016

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Transcript of A Walk through the Cosmos

A Walk Through
The Cosmos
The Big Bang
In the
Primordial Cloud
Stars are born from Nebulae
Crab Nebula
Omega Nebula
Eagle Nebula
Pillars of Creation
Death of a Star
Galaxies contain varying numbers of  planets, star systems, star clusters and types of interstellar clouds

NGC 4414
Types Of Galaxies
Spiral Galaxy - Andromeda Galaxy
Galaxy - M110
Irregular Galaxies
Lenticular Galaxy -
NGC -1427A
Ring Galaxy-
Hoag's Object
Our Home Galaxy - The Milky Way
Our Neighbourhood
Expanding Universe
What does Expansion mean?

Currently accepted - Lambda CDM Model

Expansion and relativity

Hubble’s Law
How Much Do We Know?
Measuring the expansion

Where is the Universe expanding into?

Anthromorphic view

Friedmann equations

Observational Evidence

What is the Universe made of?
What is this
Dark Energy?
Uni- or Multi- Verse?
Multiple universes have been hypothesized in cosmology, physics, astronomy, religion, philosophy, psychology and science fiction.
Bubbles Within a Bubble
Different Types of Bubbles
Or perhaps a Cascading Universe
Universe 1
Universe 2
Universe 3
Universe 4
and so on...
What's in store for the Universe?
In theory there are two possible futures for the Universe.

Spherical geometry

Mass of Universe greater than “critical density”

Black hole

Oscillation between “Big Bang” and “Big Crunch” forever
Mass of Universe less than “Critical density”- Hyperbolic

Mass of Universe exactly the “Critical density”- Flat

Never-ending Universe

Dark and Cold place
Thank You
This is our place in
the vast Universe
Planetary nebula called M57 with its White Dwarf in the middle
Full transcript