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Ernst Mach, the Austrian physicist-philosopher of the late 19th century, famously denied the reality of atoms. “Have you ever seen one?” he mockingly asked of atom advocates. Today many scientists speak with similar derision about the idea that the visible universe is not alone, but rather is only one of many universes—a single bubble in a froth of cosmic carbonation known as the multiverse. You can’t see these other universes, so the idea is not testable, multiverse opponents allege…

The Big Bang theory describes how the universe began based on what cosmologists know about the sliver of existence visible today.

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Each experiment like this allows physicists to tease out the properties of the early cosmos after the Big Bang

.....but where are they? This is our location in the Milky Way galaxy. Have you ever looked up into the night sky and wondered what/who else is out there? Are we alone in the Universe? I have, dozens of times. All of our efforts to answer the question ‘Is there life on other planets?’ are based on finding life that is similar to life as we know it on Earth. That is an extremely arrogant line of research. Where is it written that the Earth type of life form is pervasive, and that this is the…