Earth is the only home we've ever known, and it's treated us well so far. But whether it’s climate change, an apocalyptic asteroid, or some horrifying disaster we don’t even know about yet, the Earth won't live forever.
Starting with a grand tour of the Solar System, powerfully told by the world’s top space scientists. From the raging inferno of the Sun to the icy beauty of Pluto, discover the secrets that the planets have kept for billions of years, revealed with stunning images from space.
The idea of intelligence is explored in the concepts of computers (using bits as their basic units of information), whales (in their songs and their disruptions by human activities), DNA, the human brain (the evolution of the brain stem, frontal lobes, neurons, cerebral hemispheres, and corpus callosum under the Triune Brain Model), and man-made structures for collective intelligence (cities, libraries, books, computers, and satellites). The episode ends with speculation on alien intelligence and the information conveyed on the Voyager Golden Record.
Our galaxy is full of stars ready to explode into supernovas, a stellar detonation powerful enough to destroy all life on Earth; it's an event that hasn't occurred in 400 years, and the search is on to locate which star may be next.
Thanks to the wonders of physics, astronomers can map a timeline of the universe’s history. Today, Phil’s going to give you an overview of those first few minutes (yes, MINUTES) of the universe’s life. It started with a Big Bang, when the Universe was incredibly dense and hot. It expanded and cooled, going through multiple stages where different kinds of matter could form. It underwent a phenomenally rapid expansion called inflation, which smoothed out much of the lumpiness in the matter. Normal matter formed atoms between 3 and 20 minutes after the bang, and the lumps left over from inflation formed the galaxies and larger structures we see today.
In 1961 when President Kennedy pledged to put a man on the moon by the end of the decade, no rocket existed with the power or capability to rise to the challenge. In order to win the race to space, the United States would need to establish a multi-billion dollar space program. One man, Werner Von Braun believed he had the knowledge and vision to make Kennedy's dream a reality.This is the story of the most powerful machine ever built, and the men and women who believed it could fly.
2014 • Astronomy