P1.5.4 The Origin Of The Universe Flashcards
1
Q
The universe seems to be expanding
1) light from the other galaxies is red-shifted- when we look at light from other galaxies we see the same patterns but slightly lower frequencies than they should be- they’re shifted towards the red end of the spectrum.
2) the further away a galaxy is the greater the red-shift
A
The most convincing theory we have is the Big Bang.
It all started with a very Big Bang……
There’s a uniform microwave radiation from all directions
The Big Bang theory has its limitations
