The Universe

Question 1

What are the two pieces that support the big bang theory?

Answer 1

• Cosmic Microwave Background Radiation (CMBR)

- Absorption Spectra (redshift)

Question 2

How does CMBR support the big bang theory?

Answer 2

• the universe originated with gamma waves, with small wavelengths
• as the universe has expanded, the waves have been stretched to the microwave region of the electromagnetic spectrum, with longer wavelengths that can been seen across the universe.

Question 3

How does Absorption Spectra support the big bang theory?

Answer 3

• longer wavelengths mean the further the black lines on absorption specta will be redshifted
• wavelengths will redshift more when further away
• galaxies are moving away from us as those further away are red under a telescope
• theorising that the universe began at a single point , and is expanding outwards and being further redshifted