Answer:
So lets say, you can see the observable universe, thats anything we can see, from our perspective, where the light reaches. So What about outside the universe? We all know dark energy speeds up the expansion of space past the speed of light. Actually, the farther something is away from earth , the faster it's moving away from us. Now this is where math comes in, lets take some numbers,
The expansion of Space = 68 kilometres per second per megaparsec (or mpc)
Question:
1- What is the equivalent distance of a megaparsec?
2- Why does the parsec has that value? How many degrees should the parallax angle be at to prove this phenomenon?
3- What is the formula to calculate the speed of a galaxy thats traveling away from us?
4- If a galaxy is moving with the speed of 408 km/s away, how many megaparsecs is it away from earth?
5- How many megaparsecs do we need to surpass the speed of light? (knowing that the speed of light is equivalent to 299,792km/s)
