The dots on the balloon move apart, when you blow air in it. What causes the universe to do so or to expand?.

It turns out to be dark energy. Scientists know 1 thing about dark energy that they don't know it. Dark energy is 1 of the biggest mysteries, no o...

Let us understand this- Suppose stars are light bulbs ok? 100 watt bulb=bright star.

Now, you see a 100 watt bulb in the sky, but you notice that it pulsing very fast i.e., it is going from bight to dim to bright to dim very fast. But according to Henriatta, a 100 watt bulb would pulse slow...

Imagine you throw a ball up in the sky, but instead of coming down, it slows for 1 sec and then shoots off in space like a rocket. What will be your reaction?

Scientists had the same reaction when they discovered that the expansion of the universe is speeding up very fast.

If universe has a beginning, it must have an end, right? I mean look at you, you born and you will die. There are 2 ways:

1. The heat death- It states that everything will go sooooooooooooooooooo distant that the entropy would be zero and nothing will interact. And all wi...