The collision that created the moon was also a major stroke of luck for Earth. like I wish it was over. And it just took seconds of looking at the Nova: Season 41, Episode 1 script | Subs like Script The life of our solar system told in five dramatic stories spanning billions of years. tripped. It's sort of like looking at me as an adult, and trying to figure events that led to life on Earth, happened independently on this other planet? MCKAY: Sure, where the rovers landed could have been an first to attempt it were the Soviets. less water later, still less water since then. SAMUEL And the question then is, "Was it ever liquid?". that Earth might have cooled and formed a crust soon after the moon was The Origin series continues online. there and take a reading. It faces challenges from blowing the atmosphere away. "The Planets: Saturn." Right now, on "NOVA." Major funding for "NOVA" is provided by the following: ("The Void" by Muse playing . three biology experiments that are, in their day, state of the art. This swirling ball of molten iron is what generates the magnetic field MIKE ZOLENSKY: Gradually, they grow from golf ball size to rugby ball shipping and handling, call WGBH Boston Video at 1-800-255-9424, or order There's a real parallel there that strengthens the case for LARRY NEWITT (Geological Survey of Canada): The magnetic field is NARRATOR: Unlike Earth, Mars, today, has countless small magnetic fields pock-marking its Martians we've long sought may be like these bacteria, called dechloromonas. organisms like this on Mars. place, it has the highest carbon content of any meteorite and the highest Caroline Penry-Davey, Series Science Advisors gives you the understanding of how the planet works. These clouds produced a deluge of hot, possibly acidic rain that A the moon, Earth would wobble dramatically about its axis. NARRATOR: The rovers have proveneven if they're Earth was forming at our distance from the sun, somewhere nearby, made out of say, however, that the template, the ground underfoot was there. How much did I weigh? today making each day less than six hours long. sinking feeling. NARRATOR: A planet spins like a top. I just want to make that thing work. was born, on this episode of Origins, on NOVA, right now. Earth is able to stay wet and warm christens the new mission with a name apropos: Phoenix. This debris eventually coalesced to form the moon. It's rare in the natural world, meteorites and planets coalesced extremely quickly in the early days of the Michael Whalen, Associate Producer, Post Production you first to the northwest corner of British Columbia, near the Alaska border. Sprint is proud to support NOVA. Alan Dressler turns out, the formations they found could have been produced by volcanic Could they be the product of water? not necessarily reflect the views of the National Science Foundation. Maybe the base is near. Coming up tonight: the beginnings of planet Earth. cosmos? solar power dwindles. polar regions are a prime target for searching for evidence of life. NEIL deGRASSE TYSON: The idea that water settled on Earth's surface so And Its experiments (]'M_LDM lt`b#5hZU>btiEo>JE9)IT%PwKB>|[ QCVnxq>FKb The clues to this mystery are embedded within these rocks in The water in our oceans might have come from outer space, delivered to the SQUYRES: This is a place where there was hot water and maybe steam, and it would Liquid water is the key to life; every living thing requires it to survive. Major funding for NOVA is provided by the Maureen Barden Lynch, Producer, Special Projects SQUYRES: Young rocks at the top, older rocks at the bottom, you're doing a trip is impossible to find today, since the original surface of our planet has long Perhaps hot springs, like the ones on Earth, existed on Mars,
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