Question

Astronomers use various tools to gather evidence in support of the Big Bang Theory.

Answer 1

The two tools used are:

• A relationship existence between a galaxy's distance from Earth and also that of its speed.
• The findings in the 1960s of  the presence of cosmic microwave background radiation.

What evidence is collected by each tool?

The evidence to support the big bang are:

• There was found to be some red shifts of a lot of galaxies which connote that the universe is widening.  
• Due to the widening of universe, new elements were formed such as hydrogen, deuterium and others.
• Microwaves were found by orbiting detectors.

Therefore, The two tools used are:

• A relationship existence between a galaxy's distance from Earth and also that of its speed.
• The findings in the 1960s of  the presence of cosmic microwave background radiation.

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