Patreon - https://www.patreon.com/user?u=37594401 Buy Me A Coffee? - https://www.buymeacoffee.com/whats.next Donate With Cash App - https://cash.app/$YTpayments Get Mentioned In Future Videos By Joining PATREON For As Little As $5 A Month (and gain access to DOZENS of videos!) Support Direct Improvements To The Channel With BUY ME A COFFEE Or Make Direct Contributions With No Strings Attached With CASH APP WANT MORE GREAT CONTENT? SUBSCRIBE 2 THESE GREAT CHANNELS! Vega Astro - https://www.youtube.com/channel/UCejLQCRfKR1XAmDeRRv3ifA Terran Space Academy - https://www.youtube.com/channel/UCGzgxO2YKjk9yYKLwBjyeVA Mars Matters - https://www.youtube.com/channel/UCPFLOxf5-AgE0QlaXhzol_Q Vulcan /ˈvʌlkən/[2] was a theorized planet that some pre-20th century astronomers thought existed in an orbit between Mercury and the Sun. Speculation about, and even purported observations of, intermercurial bodies or planets date back to the beginning of the 17th century. The case for their probable existence was bolstered by the French mathematician Urbain Le Verrier who, by 1859, had confirmed unexplained peculiarities in Mercury's orbit and predicted they had to be the result of gravitational influences of another unknown nearby planet or series of asteroids. A French amateur astronomer's report that he had observed an object passing in front of the Sun that same year led Le Verrier to announce that the long sought after planet, which he gave the name Vulcan, had been discovered at last. Many searches were conducted for Vulcan over the following decades, but despite several claimed observations, its existence could not be confirmed. The need for the planet as an explanation for Mercury's orbital peculiarities was later rendered unnecessary when Einstein's 1915 theory of general relativity showed that Mercury's departure from an orbit predicted by Newtonian physics was explained by effects arising from the curvature of spacetime caused by the Sun's mass.[3][4] Theories and observations Celestial bodies interior to the orbit of Mercury had been hypothesized, searched for, and even claimed as having been observed, for centuries.[citation needed] Claims of actually seeing objects passing in front of the Sun included those made by the German astronomer Christoph Scheiner in 1611 (turned out to be the discovery of sunspots),[5] British lawyer, writer and amateur astronomer Capel Lofft observations of 'an opaque body traversing the suns disc' on 6 January 1818,[6] and Bavarian physician and astronomer Franz von Gruithuisen 26 June 1819 report of seeing "two small spots...on the Sun, round, black and unequal in size".[7] German astronomer J. W. Pastorff reported many observations, on 23 October 1822, 24 and 25 July 1823, six times in 1834, on 18 October 1836, 1 November 1836 and on 16 February 1837, also claimed to have seen two spots; the larger was 3 arcseconds across, and the smaller 1.25 arcseconds.[7] Theories that there could be planets orbiting inside Mercury's orbit were put forward by British scientist Thomas Dick in 1838[8]: 264  and by French physicist, mathematician, and astronomer Jacques Babinet in 1846 who suggested there may be "incandescent clouds of a planetary kind, circling the Sun" and proposed the name "Vulcan" (after the god Vulcan from Roman mythology) for a planet close to the Sun.[8]: 156  As a planet near the Sun would be lost in its glare, several observers mounted systematic searches to try to catch it during "transit", i.e. when it passes in front of the Sun's disc. German amateur astronomer Heinrich Schwabe searched unsuccessfully on every clear day from 1826 to 1843 and Yale scientist Edward Claudius Herrick conducted observations twice daily starting in 1847, hoping to catch a planet in transit.[8]: 264  French physician and amateur astronomer Edmond Modeste Lescarbault began searching the Sun's disk in 1853, and more systematically after 1858, with a 3.75 inch (95 mm) refractor in an observatory he set up outside his surgery. The fictional Vulcan homeworld, also named Vulcan, was visited several times in the Star Trek series and feature films. The inhabitants are known as "Vulcans" or "Vulcanians". First seen in the TOS episode, "Amok Time", Vulcan, a Class M planet, is an arid world with a thinner atmosphere than Earth. McCoy states upon beaming down, "Hot as Vulcan, now I understand what that phrase means." In the TOS episode, "The Man Trap", while Uhura is attempting to make conversation with Spock, he informs her that Vulcan has no moon. According to Star Trek canon, the planet orbits 40 Eridani A. The authorized Star Trek book Star Trek: Star Charts[36] and Roddenberry himself[37] give this location. In addition, Commander Tucker's statement in the Star Trek: Enterprise episode "Home", that Vulcan is "a little over" 16 light years from Earth supports this location, as 40 Eridani A is 16.39 light-years from our own Solar System.[38] The planet's location is confirmed by a map. ... https://www.youtube.com/watch?v=yJGcgtJsYu4