Hello guys, Welcome to Africa's Largest Video Search Engine, and you are watching An INCREDIBLE JOURNEY to the DISCOVERY of the CENTER of the UNIVERSE | Space Documentary. and this video is uploaded by Wondody | The World of Odysseys at 2023-04-09T15:00:18-07:00. We are just promoting this video only for entertainment and educational purpose only. I hop you like our Video Search Engine. [rf7SO8DO36g]
| Name | An INCREDIBLE JOURNEY to the DISCOVERY of the CENTER of the UNIVERSE | Space Documentary |
| Video Uploader | Video From Wondody | The World of Odysseys |
| Upload Date | This Video Uploaded At 09-04-2023 22:00:18 |
| Video Discription | š Have you ever gazed at the starry sky on a summer night? As we look up at the cosmos, existential questions race through our minds. Are we alone among the stars? How far does our universe extend? What mysteries can it harbor? What is hidden at the limits of what we can observe? These questions, as terrifying as they are fascinating, are beyond our capacity to understand. And unfortunately, it is likely that we will never find all the answers... But the scientific discoveries and the technological advances of these last decades have nevertheless allowed us to open our eyes! Our vision and our understanding of the universe are limited and the universe is full of surprises. Black holes, exoplanets, vampire stars, supernovas, comets, nebulae, dark matter... Yes, space is full of curiosities all more surprising than the others! š„ As a reminder, the videos are published on SUNDAYS at 6:00 PM. ------------------------- š„ Journey into our Universe: - If our universe is about 14 billion years old, you should know that our Milky Way was born almost at the same time as it. Indeed, scientific research has made it possible to estimate its age by observing the oldest bodies it harbors. This is the case of the star HE 1523-0901, one of the oldest in our galaxy. Aged 13.2 billion years, this red giant is located at 7500 light years from Earth. This news surprised scientists, including the astronomer Anna Frebel and her team, who discovered it in 2007. However, only 6 years later, it was the turn of the star HD 140283 to steal the show. Estimates do not allow us to know precisely what its age is. Measurements made with the Hubble satellite led to the conclusion that it could be 14.5 billion years old, which is more than the observable universe... But taking into account the uncertainty of the results and the new measurements bring this estimate back between 13.2 and 13.7 billion years. Proxima Centauri, also called Proxima Centauri, is the closest star to our sun ever discovered. But beware, with the technologies we currently have, it is impossible for us to reach it. Let's imagine that you are at the wheel of a space shuttle going at a speed of 100 km/h. To get to Proxima, you would need 60 million years... Now, if you had the possibility to travel at the speed of light, the travel time would be more acceptable. A little more than 4 years only! Located at nearly 40,000 billion kilometers from the sun, it is a small and not very luminous star compared to ours. Proxima is about 8 times less massive and 20,000 times less bright than the Sun. As for its size, it is estimated to be 7 times smaller. It belongs to the category of red dwarfs. Red dwarfs are the most common stars in our galaxy. They represent about 80% of the stars in our galaxy, a total of 240 billion out of the 300 billion stars in our Milky Way galaxy. These planets are respectively named Proxima B, C and D. Unfortunately, these New Worlds do not seem to be ideal candidates for the emergence of life as we know it. Due to its strong and unstable magnetic field, solar flares are frequent on Proxima Centauri. Thus, although Proxima B is located in the habitable zone of its star, the chances of it harboring life forms remain slim... These double stars are referred to as Alpha Centauri A and B and, together with Proxima (Alpha Centauri C), they form an unusual star system. ------------------------- š¬ On the program today: - 00:00 - Introduction - 04:03 - The oldest star in our galaxy - 02:42 - The oldest star in the universe - 07:53 - Our nearest neighbor: Proxima of the centaur - 10:33 - A star is born! - 13:08 - Red giants: stars of gigantic proportions - 15:56 - The largest observable star in the universe - 19:38 - Black holes: terrifying cosmic chasms - 27:30 - The mystery of the evaporation of black holes - 29:25 - The Fermi paradox - 33:25 - Supernovas: incredible cosmic explosions! - 38:30 - The most powerful cosmic explosion ever detected - 43:30 - Neutron stars: The mass of New York in a teaspoon! - 45:38 - Pulsars and gamma-ray bursts - 48:48 - The quasars - 54:22 - The incredible types of galaxies - 59:50 - The dark matter - 01:07:15 - The largest galaxy - 01:08:35 - The Farthest Galaxy Wondody is an official channel affiliated to the network Ā©Production Orbinea [rf7SO8DO36g] |
| Category | Science & Technology |
| Tags | wondodi | science | space | documentary | earth | space documentary | galaxy | milky way | universe | mars | nasa | extraterrestrial | alien | history | solar system | life | history of the earth | extinction of dinosaurs | history documentary | journey | exoplanet | extraterrestrial planet | planet | documentary universe | discovery | doc | james webb | cosmos | universe documentary | 2023 | cosmos documentary | extraterrestrial life | james webb documentary | james webb space telescope | james webb telescope | documentary 2023 |
