The Science of Black Holes

"Logic will get you from A to B. Imagination will take you everywhere."  - Albert Einstein   But let me explain another perspective, it was not any asteroid that ‘Killed’ the dinosaurs, it was the impact of the Asteroid that made it happen.  It’s one of the theories that say, an asteroid hit the Earth near Mexico and the amount of radiations and heat produced led to these changes: Temperature went up The sunlight couldn’t reach the earth for a long time Absence of sunlight, led to food shortages Which led to extinction of dinosaurs. So, if the thing hitting the earth , either UFO or Asteroid, doesn’t really affect the extinction of dinosaurs, until the aftereffects were same. And coming to the second point, whether we’re aliens. If life exists on some other planet or galaxy or entirely different Universe, surely we’re Aliens for them and vice versa.

  In the first second after the universe began, the surrounding temperature was about 10 billion degrees Fahrenheit (5.5 billion Celsius), according to NASA. The cosmos contained a vast array of fundamental particles such as neutrons, electrons and protons. These decayed or combined as the universe got cooler.         This early soup would have been impossible to look at, because light could not carry inside of it. "The free electrons would have caused light (photons) to scatter the way sunlight scatters from the water droplets in clouds," NASA stated. Over time, however, the free electrons met up with nuclei and created neutral atoms. This allowed light to shine through about 380,000 years after the Big Bang.    This early light - sometimes called the "afterglow" of the Big Bang - is more properly known as the cosmic microwave background (CMB). It was first predicted by Ralph Alpher and other scientists in 1948 but was found only by accid...