The Universe Season 5 Episode 4 Time Travel

DailyMotion

We are in the midst of the greatest era of space discovery. Twenty first century spacecraft and sophisticated imaging technology are venturing into uncharted territory every day, and much of the extraordinary phenomena are happening right in our own cosmic backyard.
Episode 1 The 7 Wonders of the Solar System – Take an exhilarating, unprecedented 3D tour of the seven most amazing wonders of our solar system, beginning with a trip to Enceladus, one of Saturn s outer moons, where icy geysers spout from its surface. Then venture to Saturn s famous rings, which contain mountain ranges that rival the Alps, dive into Jupiter s Great Red Spot, the eye of the biggest storm in the solar system, soar through the Asteroid Belt, made of millions of rocks left over from the formation of the solar system, trek up Mount Olympus, the largest volcano located on Mars, have a close encounter with the searing surface of the sun, and finish the journey by exploring our very own home planet Earth.
Episode 2 Mars The New Evidence – A look for evidence of life on Mars which provides many clues that it now, or once had supported it, from the remains of lakes and rivers that once flowed on the surface, to the water ice frozen at the poles, to the seasonal changes in methane gases that may prove bacterial life still thrives underground.
Episode 3 Magnetic Storm – It bursts from the sun with the power of 10,000 nuclear weapons and when it hits our planet it could create the largest disaster in recorded history. A magnetic storm from the sun could wipe out electrical power and nearly every piece of electronics in the Northern Hemisphere. It’s a planet wide hurricane of magnetic forces that scramble all 21st Century technology, possibly for good. What causes this magnetic superstorm? Why is magnetism so powerful and yet so poorly understood? And is there anything we can do to prevent the Magnetic Storm?
Episode 4 Time Travel – One of the universe’s most enduring mysteries is time travel. Discover why time travel into the future is unavoidable in the Einsteinian world of relativity. As for the past the laws of physics don’t tell us it’s impossible, but the bizarre consequences of going into the past and altering the future make for mind – bending science. Finally go for the future by traveling to the nearest star, 4.3 light years away in only 45 days.
Episode 5 Secrets of Space Travel – They’ve discovered water on other planets, and snatched the actual building blocks of life from a comet’s tail. But can space probes find a new Earth and even make contact with alien life? In the 21st century, space probes are photographing, drilling and even sniffing new worlds in the quest for life, and scanning thousands of distant suns trying to detect Earth like planets. It’s only a matter of time before space probes unlock the secrets to extra-terrestrial life and the universe itself.
Episode 6 Asteroid Attack – What are the latest discoveries in the deadly world of asteroids? Will a recently returned Japanese spacecraft become the first to bring an asteroid sample back to our planet? What would happen to America’s East Coast if the massive asteroid impact that helped form Chesapeake Bay 35 million years ago struck today? And why did President Barack Obama choose an asteroid as the destination for the next great manned mission into space? Learning about these huge space rocks isn’t just about science, it’s about survival.
Episode 7 Total Eclipse – Once they were dreaded and thought to be dragons eating the sun-but modern science has dispelled mythology and we now look forward to total Solar Eclipses as one of the most spectacular phenomena in the heavens. Explore the complex movements of Earth, Moon and Sun that produce these unusual events and hear details why we may be the only intelligent beings in the known Universe to witness eclipses like we see on Earth. Man – made eclipses also figure into the science in the form of instruments called “coronagraphs”. They blot out the sun and reveal its corona, uncovering secrets which, while enlightening, also warn of a disaster that could make our advanced technology crash and burn. Finally, travel into deep space, where the tiny eclipses caused by planets circling distant stars is now beginning to reveal hundreds more stars where “exoplanets” exist … perhaps even those in habitable zones like the Earth.
Episode 8 Dark Future of the Sun – Our Sun has served Earth well for almost five billion years. It’s bathed us with heat and energy. But like humans, our home star is mortal. In five billion years, it will stop nurturing its planetary offspring. The aging star will bloat out beyond the orbit of our planet incinerating all living things including humans if we’re still around.