As an amateur in Cosmology and Astronomy, let’s assume you just know that a Big Bang happened that led to the present existing universe and it is an extremely dense and hot particle mass that exploded during the big bang.
If you’re posed a question to figure out the age of the universe, how will you start after scratching the head? Kidding! Will you take radiocarbon samples of some extraterrestrial asteroids? How many samples will you take to find out the oldest amongst all?
Even if you consider this hit and trial method, it’s a lot of work and expense involved. How about tracing back the expansion of the universe (discovered in 1929), like creating a generic formula giving out the extent of expansion against time (rate of expansion).
Also, how about trying to find the temperature change against time as a function? Yes, this probably is the best amongst the three. To answer the questions about the universe, scientists along with governments have set up observatories to “observe” the changes, anomalies, and whatever can be caught and hence the temperature of the cosmic and microwave background being one of them.
Think about this just for fun and it’s pretty sure that you’ll end up surprising yourself.
A HUGE APPLAUSE TO THE 2019 NOBEL LAUREATES IN PHYSICS FOR THE DISCOVERY OF EXOPLANETS AND GROUNDBREAKING DEVELOPMENTS IN PHYSICAL COSMOLOGY.
Also, Have you ever thought about the significance of mankind or any species in general? Don’t hesitate at all to comment your views or additions.