The first 10_-43 seconds of the universe's history is called? Planck Era true Gamow Era false Hubble Era false Hoyle Era false Single Which of the following elements already existed 380,000 years after the Big Bang? Helium true Carbon false Silicon false Uranium false Single In which constellation is the famous "Pillars of Creation" of the Eagle Nebula located? Sagittarius false Serpens true Orion false Cassiopeia false Single How many extra neutrons does tritium have compared to stable hydrogen? One false Two true Three false Four false Single Which of the following elements is NOT considered as a light element? Deuterium false Lithium false Hydrogen false Argon true Single What do you call the matter that consists protons and neutrons? Baryonic matter true Dark matter false Dark energy false Leptonic matter false Single Which of the following types of electromagnetic radiation has the longest wavelength? Radio waves true Infrared false Visible light false X-rays false Single The telescope that first detected the Cosmic Microwave Background is located in which country? United Kingdom false Brazil false United States true Japan false Single Who coined the term 'Big Bang' to describe the now most-accepted theory on the formation of the Universe? George Gamow false Edwin Hubble false Georges Lemaître false Fred Hoyle true Single Which of the following is NOT a postulate of the Steady State Theory? The universe retains a constant size true The density of matter in the universe is constant false It is impossible to determine the age of the universe false The universe appears the same everywhere false Single