THE ORIGIN AND FATE OF THE UNIVERSE

1
THE ORIGIN AND FATE OF THE UNIVERSE
2
The Scale of the Universe

• The solar system (see illustration)

3
(No Transcript)
4
The Scale of the Universe

• Nearby Star systems (see illustration)

5
(No Transcript)
6
The Scale of the Universe

• Galaxies
• spiral galaxies (the Milky Way and the Andromeda
  galaxies)
• the arms
• the central bulge
• the halo and globular clusters

7
(No Transcript)
8
The Scale of the Universe (cont.)

• Galaxies
• irregular galaxies
• elliptical galaxies

9
Large Magellinic Cloud, irregular galaxy

• M84 Elliptical Galaxy

10
The Scale of the Universe (cont.)

• The Local Cluster or Group (see illustration)

11
(No Transcript)
12
The Scale of the Universe (cont.)

• Super clusters (see illustration)

13
(No Transcript)
14
The Scale of the Universe (cont.)

• The Universe (see illustration)

15
(No Transcript)
16
Newtons Model

• Infinite and static
• Olbers paradox

17
Evidence of Expansion

• Hubbles law
• doppler shift
• recession velocity Vs. distance

18
(No Transcript)
19
Evidence of Expansion

• Background radiation
• doppler shift

20
(No Transcript)
21
The Creation of the Universe

• The big bang
• time line
• 10-43 s
• 10-35 s
• 10-35 s - 10-24 s
• 10-12 s
• 10-6 s
• 2 s
• 3 minutes
• 300, 000 years

22
The Creation of the Universe

• The big bang
• the laws of physics
• where
• when

23
The Fate of the Universe

• Critical mass / density

24
The Fate of the Universe

• Curvature of space
• open (saddle or negative curvature)
• critical (flat or no curvature)
• closed (spherical or positive curvature)

25
(No Transcript)
26
Some say the world will end in fire.Some say
ice.From what Ive tasted of desireI hold with
those who favor fire.But if I had to perish
twiceI think I know enough of hateTo say that
for destruction iceIs also greatAnd would
suffice.