Professor Brian Cox takes us on an inspiring journey through the solar system’s hidden realms, those mysterious and often overlooked dark worlds that exist between and beyond the planets we know best.
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The Sky at Night – Is Cosmology in Crisis ? episode 2 2019: ever since we discovered that distant galaxies are racing away from us, there has been a heated debate over just how fast the Universe is expanding. At the beginning of the 21st century, we thought we knew the answer. But now, two very different viewpoints have emerged. And they are dividing the scientific community. The Sky at Night meets leading astronomers and cosmologists on both sides of the debate. Which team has the right answer? Or could both teams be right? If so, we may
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Space-time is the secret structure that controls the universe, and this strange four-dimensional substance controls time, light, and energy. It will also determine how the universe will end. Space-time In physics, space-time is any mathematical model that fuses the three dimensions of space and the one dimension of time into a single four-dimensional continuum. Space-time diagrams are useful in visualizing and understanding relativistic effects such as how different observers perceive where and when events occur. Until the turn of the 20th century, the assumption had been that the three-dimensional geometry of the universe (its description in terms
How the Universe Works: Mystery of Space-time ep.10 2018 Read More »
Quasars are the brightest and most powerful objects in our universe, and though they have shaped the cosmos, they might ultimately destroy everything that exists. Quasar A quasar (also quasi-stellar object or QSO) is an active galactic nucleus of very high luminosity. A quasar consists of a super massive black hole surrounded by an orbiting accretion disk of gas. As gas in the accretion disk falls toward the black hole, energy is released in the form of electromagnetic radiation. Quasars emit energy across the electromagnetic spectrum and can be observed at radio, infrared, visible, ultraviolet, and X-ray
How the Universe Works: The Quasar Enigma ep.7 2018 Read More »
The Milky Way is dying, and experts are investigating what’s killing it. How is the universe put together? How is it built? And how does it actually work? Science’s hit space series will blow your mind by answering how the universe started and how it will end – and everything in between. Learn how nuclear fusion keeps them burning for billions of years and what powers our nearest star: the sun. The inner workings of outer space will be revealed as modern astronomy helps to demystify a series of unusual phenomena. Milky Way The Milky Way
How the Universe Works: Death of the Milky Way ep.5 2018 Read More »
Planets that orbit two suns instead of one might be deadly hell worlds, but new discoveries reveal that sci-fi star systems with binary stars might be optimal places for alien life. How the Universe Works is a users guide to the cosmos from the big bang to galaxies, stars, planets and moons. Where did it all come from and how does it all fit together. A primer for anyone who has ever looked up at the night sky and wondered. Binary stars A binary star is a star system consisting of two stars orbiting around their common barycenter.
How the Universe Works -Twin Suns: The Alien Mysteries ep.3 2018 Read More »