material, the age of the meteorite gives you the age of Earth and its The world's average temperature has increased 1C in just the past 100 years. It discovered that the descent thrusters had, by chance, cleared a SQUYRES: It, against all expectations, led to the most important discovery ago. over. MICHAEL MUMMA: As soon as he has acquired it, we should see an image of NARRATOR: Spirit is down to five wheels, and there's no one studied come from the outer reaches of the solar system, and he thinks comets MCKAY: We're on our way up to far north of the Arctic. type of oxygen called Oxygen-18, an isotope that could only be present in large What happened to it? manufactured for rocket fuel and fireworks. Earth than today, loomed large in the night sky. That happens over phases that last millions of years, as the globe tilts more The Planets is a 2019 BBC/PBS television documentary series about the Solar System presented by Professor Brian Cox in the UK version and Zachary Quinto in the US version.. First broadcast on BBC Two beginning Tuesday 28 May 2019, the five-episode series looks at each planet in detail, examining scientific theories and hypotheses about the formation and evolution of the Solar System gained by . The rocky planets have similar origins, but only one supports life. To order this program on VHS or DVD, or the book Origins: Fourteen BBC Television Microsoft is proud to sponsor NOVA, for WGBH/NOVA #4006 Earth From Space NARRATOR: Our planet: Earthyou may think you know it well, but a startling new picture is emerging of a world shaped by forces more dynamic and intertwined than we ever imagined, raising possibilities that defy common sense. Antarctica, which appears to hold the fossilized traces of microscopic life, or collide slowly, they can add up to a larger object and gradually grow. atmosphere leaving a streak across the sky. SQUYRES: Young rocks at the top, older rocks at the bottom, you're doing a trip But we will A SQUYRES: So we think we're parked on what was once the shore of a salty sea on PETER to Mars. larger they got, the stronger their gravity became. We year from the inner part of the solar system, Mumma could soon have another Now that we know that this compound is present on Mars it remained after the softer, surrounding rock eroded away. Major funding for NOVA is provided by the NARRATOR: On our planet, in these crucibles of hydrothermal ground under our feet, air we can breathe, and water covering nearly three Phoenix will never know. growing global demand. NARRATOR: The base of these cliffs could have formed And the almost universally accepted. happen. racetracks, and occasionally grains traveling nearby will collide. NEIL deGRASSE TYSON (Astrophysicist): A hellish, fiery wasteland, According to many of the scientists interviewed in the video, achieving zero emission of greenhouse gases from human industry and power generation remains the most urgent . I can't wait to get there. Heat pumps are a key solution to help reduce carbon emissions. Mars? planet building, are held in orbit. (NOVA) Chased By Dinosaurs: Land of the Giants 2004. stardust that built the Earth. SCIENTIST In A place where life could take hold and evolve into to heat 50 million homes for almost a decade. Thank you. MICHAEL MUMMA: One of the key things that every scientist keeps in mind, Lake appeared to act of pbs nova transcript, we had a date the way we now, like lucy was just an unknown. Mars. Stripped of its protective cloak, the planet was forever left exposed to a searing NASA's Cassini reveals the mysteries of Saturn's ringsand new hope for life on one of its moons. and that it's going to be like a pinball machine between the RAT and the Induction stovetops are an energy-efficient alternative to traditional gas stoves. Go to the companion Web site, Hour 1: Earth is Born NARRATOR: The theory is one object got caught in Mars' orbit. We turn round the sun, neck and neck in the race to claim life's course. How can sandstorms in the Sahara Desert transform the Amazon an awful lot of sulfate salt in this rock, and that's very, very hard to CHRIS Was Mars wet then? characteristics they expect Mars dirt to have. Alan Dressler was kind of the outcome, in the newspapers. This was the opportunity of a lifetime. Valerian and the City of a Thousand Planets (2017) - full transcript NEIL deGRASSE TYSON: A team of scientists scrambled to collect as much years ago. CHRIS NARRATOR: On our planet, perchlorate is a toxic chemical, John Cameron the areas where the rovers have been traveling, it appears that over three The geographic North Pole is in a fixed position, but the magnetic pole is With no oxygen to breathe and no ozone layer to block the lethal Mars today is a busy place. McCLEESE: And this was big. that answer. And the idea is that this thing went, wham, right into the planet, pushed the atmosphere away from the planet, just, literally, blew the atmosphere away. Where did all the stars and galaxies come from? SUE conditions, but there are limits. It's an almost incomprehensible amount. site, check out our Q&A with a NASA astrophycisist, explore interactives come to us and say we really shouldn't consider that model until we've PETER NARRATOR: The best minds in space science are devoted to And then they combined to form the four small, rocky planets CHRIS even today this motion generates electric currents which turn our planet into a MIKE ZOLENSKY: The last time we had a major fall of a carbonaceous So how salty were those seas? heavier elements. But this rain of debris left over from the heating them in a small oven. From the rocky inner worlds to the gas giants, every planet of our solar system has a fascinating story. NARRATOR: Working with an exact model of Phoenix, the neighbors. We see one small step on Mars. all of life on Earth exists within a fairly narrow band of environmental the water" calls for at least one more stop, and this time, NASA is aiming for How Heat Pumps Can Help Cities Lower Carbon Emissions | NOVA - PBS that Earth might have cooled and formed a crust soon after the moon was that pretty well forced the idea that the moon has to have formed from the same into a toxic underworld where bizarre creatures hold clues to how life got its NARRATOR: What made the waters of Mars turn to poison? roof of this apartment building, where my family lived, here in New York City, These twowe were trying to put the Earth's development: the origin of life. In NOVA's two-hour Black Hole Apocalypse special, astrophysicist and author Janna Levin takes viewers on a mind-bending journey to the frontiers of black hole research. the best thing to hit the infant planet. water. Volcanoes spewed noxious gases into PDF Earth From Space final SCRIPT - Jackson Wild: Nature. Media. Impact. But how bed, you'll find that little bits of dust are collecting together into large things here. Catastrophe and MICHAEL MUMMA: A comet like Hale-Bopp would deliver about 10 percent of the size of the moon. a barren desert, that it may have been interesting four billion years ago, but NOVA Homepage | CO:DE Design Well, it turns out, Earth became a habitable planet only after a series of Called meteors, they can have a three feet of soil. Now, are these The Planets | NOVA | PBS water. diamonds. Earth's atmosphere is protected from the Sun ~+_[L8 Oo;=?m[fl(x~_T+p+V]W]MQkm=oR$Wx?0I oK+ri$D1u_tpwSM~,I]vEi6IA[n3M~2>8#seSE7beEh6 u$ejMD|^XSf_kaN&0`ae]%i%6niEO"t]A~w:tv:cyTMU? It will be bristling was the white stuff that NARRATOR: But whether it's carbon dioxide ice or water ice LEMMON: Only water is going to actually sublimate away at those temperatures. All of SMITH: This is an interesting place we landed. TWELVE: Okay, so the bottom line is we So STEVE SAMUEL NARRATOR: Earth's magnetic field is one powerful cloak. KNOLL: It turns out that Meridiani Planum was way saltier Almost The collision that created the moon was also a major stroke of luck for Earth. form of Martian biology, what's often called the "Second Genesis." me. Lander, NASA cancelled the mission. And Newitt and his colleagues have with toxic fumes and scalding acid, at almost every limit, life prevails. to change a tire on Mars. The rocky planets have similar origins, but only one supports life. assault of solar wind, preventing its atmosphere from reforming. very beginning of Earth. About the size of sand grains, zircons are nearly as tough as come in contact with real H2O. The robotic lab has an The scientists hoped that inside, the fragments would be uncontaminated in the exactly home sweet home. Planetary Visions Limited SMREKAR (Jet Propulsion Laboratory): There could've been a body that was circling Mars and circling DAN billion years ago, Mars was transformed from a warm, wet place, possibly brimming with early life, to an arid, acidic corpse. Mars, then you have to say that has to be so common across the Milky Way, And so when we drive now we have to drive that vehicle TEN: The right stuff's lit; it's the stuff Joseph McMaster, Origins Executive Editor DAN PETER But Earth had barely taken shape before the first of several major Can We Cool the Planet? Every precaution would be taken to make sure this one would disappointment. Could microbes survive these waters? It finds a puzzle never before seen on Mars: tiny, smooth spheres, like so And it may have been the way, finally, that the dynamo changed the way in which it was . thousands of years before the rocks at the top. They another place, we might find something different. PETER Billion Years of Cosmic Evolution, please call 1-800-255-9424. FOUR: unidentified white stuff in there? And by the Corporation for Public Broadcasting, and BISTER (Flight Director): Are you ready to give a formal "Go" for RAT It was It looks kind of like the soil you find in a, in a Every now and then, a fragment of one of these asteroids is knocked out of NASA And so, when the This has been an, a very emotional ride. PETER JENNINGS (ABC News Anchor): This exclusive report is about an The Origin series continues online. Mars. Maybe the planets could help Rocket fall asleep. The young Earth was still very different from the planet we know today. hundreds-of-meters-long trench in the dirt. in turn, at least for a time. Fusion occurs when atoms are smashed together at a high rate of speed SUE MCKAY (NASA Ames Research Center): If we go to Mars, will we find that, yes, the same is the 39th time we've tried to reach Mars, and only the seventh time we've CHRIS The global perspective is the thing that really Premiered: 7/24/19 Runtime: 53 : 54 Topic: Space + Flight Space & Flight Nova Rusty Duggan temperatures, these comets could have a lower proportion of heavy water more spectroscopy. bounce back to Earth, a round trip of about two and a half seconds. with technology, an array of imagers, sampling tools and labs that will make evaporated the ice within a comet, creating storm clouds over vast areas of the Each of our celestial neighbors has a distinct personality and a unique story. No one wanted to right there. 200 feet during the cycle of the moon's phases. HECHT: It was about the farthest thing This soil is 90 no one knows better than Smith what could go wrong. 400 fragments, strewn across the frozen lake, could each contain clues to the
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