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All Paranormal - All the Time... Your one source for the unexplained, the unknown and the unbelievable...

  1. 6h ago

    222 Paranormal Podcast - Alien Talk with Joe and Jennifer Shortridge

    Do Aliens exist? In this episode, Joe and Jen talk about that question and much more. The Drake equation, which the astronomer introduced in 1961, calculates the number of civilizations in our galaxy that can transmit—or receive—interstellar messages via radio waves. It relies on multiplying a number of factors, each of which quantifies some aspect of our knowledge about our galaxy, planets, life and intelligence. These factors include the fraction of stars with extrasolar planets; ne, the number of habitable planets in an extrasolar system; the fraction of habitable planets on which life emerges; and so on. All of the planets in our solar system orbit around the Sun. Planets that orbit around other stars are called exoplanets. Exoplanets are very hard to see directly with telescopes. They are hidden by the bright glare of the stars they orbit. So, astronomers use other ways to detect and study these distant planets. They search for exoplanets by looking at the effects these planets have on the stars they orbit. The Fermi Paradox seeks to answer the question of where the aliens are. Given that our solar system is quite young compared to the rest of the universe — roughly 4.5 billion years old, compared to 13.8 billion — and that interstellar travel might be fairly easy to achieve given enough time, Earth should have been visited by aliens already, the idea goes. The paradox takes its name from Nobel Prize-winning physicist Enrico Fermi, who supposedly made the above points during a casual lunchtime conversation in 1950. And the implications have had astrobiologists and other scientists scratching their heads in the decades since. Answering questions about the likelihood of abiogenesis and the emergence of intelligence is difficult because scientists just have a single piece of information: life on Earth. “We don't even really have one full data point,” Kipping says. “We don't know when life emerged, for instance, on the Earth. Even that is subject to uncertainty.” Despite its extraordinary diversity, life on Earth offers just a single example from which it is impossible to generalize to other systems. To escape from this dilemma, those other systems must be found in order to achieve the fundamental goal of understanding the distribution of life in the universe.

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All Paranormal - All the Time... Your one source for the unexplained, the unknown and the unbelievable...