A question that has always puzzled us since we were kids was the existence of aliens. As of today there are no real proof the existence of aliens but that doesn’t stop us from speculating on their existence. We can take a mathematical approach in predicting the existence of aliens in our universe, as it does seem quite viable that in a vast space stretching 92 billion light-years (1 light-year is 9.46 trillion kilometers), there being at least some form

The universe came into existence by an explosion dubbed as the ‘Big Bang’. Even though such an idea remains as a theory, scientists have produced significant amounts of evidence, including the ever expanding universe to convince the scientific community. However collecting similar evidence for the end of the universe still remains a challenge, especially due to the ‘accelerating universe’ phenomenon. The universe began its expansion since the big bang, however counterintuitively the rate of expansion is increasing with time. Meaning

Have you ever wished you could go back in time to see what the universe looked like in the past? Well, you are doing that when you look into the sky, where light takes time to come to you. The moon, for example is about 240,000 miles away; it takes light about 1.3 seconds to travel from there to here. If a giant asteroid hit the moon, we wouldn’t see the explosion until 1.3 seconds later. Light from the sun,