A journey to the stars doesn’t just begin at the launchpad. Discover new worlds through epic stories told by scientists on missions to outer space.
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Leading science journalists provide a daily minute commentary on some of the most interesting developments in the world of astronomy and space exploration
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In this season 4 finale, Gentry Lee and Rob Manning reveal how surprises, hidden flaws, and uncertainties have always been a part of rovers and the exploration of Mars.By Anthony Greicius
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Digging In: When Rovers Get Dirt on Mars - S4E11
53:47
53:47
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Aaron Yazzie and others explain how, by scooping dirt and drilling rocks, rovers are digging deeper into the mysteries of Mars.By Anthony Greicius
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How does a rover keep driving on a planet with no gas stations? Shonte Tucker, Sabah Bux and Rob Manning power us through the ways Mars rovers keep going.By Anthony Greicius
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Before You Can Drive, First You Have to Fly – S4E9
56:17
56:17
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Before a rover can make tracks on Mars, it first has to rocket off Earth, speed through space, and then alight gently on the planet’s surface. Al Chen and Swati Mohan guide us through the many stages of a rover’s flight to Mars.By Anthony Greicius
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Buckle up for a Mars tour with rover driver Vandi Verma, and learn how NASA’s rovers have evolved to better explore this alien world.By Anthony Greicius
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Flying with Ingenuity: the Mars Helicopter – S4E7
58:18
58:18
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Bob Balaram and Teddy Tzanetos share stories of how the Mars helicopter came to be, and transport us on Ingenuity’s flights through dusty Martian skies.By Anthony Greicius
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The Perseverance rover holds many promises: to look for evidence of life on Mars, to collect rock samples meant to be sent to Earth one day, and to test technology that could be used in a future human Mars mission.By Anthony Greicius
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The Curiosity rover is a big nerd at heart, fitted with a science lab to take in the planet Mars. Get the inside scoop on the mission’s many discoveries and dramas after a decade on the Red Planet.By Naomi Hartono
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A Lifetime on Mars: The Adventures of Spirit and Opportunity - S4E4
53:17
53:17
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Born together, the Spirit and Opportunity twin rovers followed divergent paths after they landed on opposite sides of Mars. Opportunity’s journey was marked by good fortune, while Spirit’s was troubled from the start.By Anthony Greicius
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Rise of the Twins: Spirit and Opportunity - S4E3
43:35
43:35
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After two failed missions to Mars, NASA tried to double its odds for success by sending twin rovers to the Red Planet. Part one of the story of Spirit and Opportunity takes us from their birth to their launch from Earth.By Anthony Greicius
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NASA’s first rover on Mars was a cute little bundle of robotic joy. Many thought it was likely to fail. Instead, Sojourner revolutionized how we explore Mars, and marked the start of 25 years of Mars rover adventures.By Anthony Greicius
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Episode one launches with Jennifer Trosper in the driver’s seat. As she looks in the rearview mirror at twenty-five years of exploring with NASA’s Mars rovers, she reveals how their progression has kept pace with milestones in her life.By Anthony Greicius
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In the fourth season of “On a Mission” we’ll be transported to the Red Planet with all five of NASA’s Mars rovers.By Anthony Greicius
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Season 3, Episode 10: A Voyager’s View of Earth
41:31
41:31
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The Voyager 1 spacecraft has traveled farther away from Earth than any human-made object. Candy Hansen and David Grinspoon talk about the Voyager mission, and its humbling perspective of our planet as a tiny blue dot in the blackness of space.By Naomi Hartono
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We hike in the Australian Outback with Abigail Allwood to visit the most ancient fossils on Earth, and track the imprint of life over space and time with David Grinspoon.By Naomi Hartono
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From fires in outer space to raging wildfires on Earth, fire experts Gary Ruff and Natasha Stavros reveal how fingers of flame reach out around our world.By Naomi Hartono
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Get swept away as we fly into massive hurricanes, and hear how the rumblings of climate change will cause clouds to gather into ever more powerful storms.By Naomi Hartono
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As we fly around with NASA pilots, we’ll explore Earth’s air space with scientists Annmarie Eldering and Armin Sorooshian -- from wispy clouds high above, to tiny particles that make up air pollution.By Naomi Hartono
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Bundle up! We’ll be diving into ice-covered waters with an upside-down robot, and exploring Greenland’s massive ice sheet with oceanographer Josh Willis.By Naomi Hartono
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Season 3, Episode 4: A World Shaped by Water
40:53
40:53
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Dive to the deepest point of the ocean with an astronaut, brave the high seas with an oceanographer, and meander through sparkling rivers with a hydrologist.By Naomi Hartono
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Like waves of the ocean, our planet’s surface is in constant motion. In this episode, we’ll travel to tropical rainforests to dig into soils with an ecologist, and fly drones with an earthquake expert to spot shifts in the ground beneath our feet.By Naomi Hartono
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Have you ever wanted to see the awesome spectacle of an erupting volcano? There’s no better guide for such an adventure than JPL volcanologist Rosaly Lopes.By Naomi Hartono
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Season Three, Episode 1: An Astronaut’s View of Earth
41:23
41:23
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You might think you know Earth, but astronaut’s views from outer space help us see our world in a whole new light.By Anthony Greicius
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Season Three, Episode 0: To the Ends of the Earth
0:28
0:28
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In season 3, we’ll travel to the ends of the Earth with scientists who explore different aspects of our unique planet.By Anthony Greicius
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Season Two, Episode 10: Comets: A Love Story
43:25
43:25
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Eugene and Carolyn Shoemaker’s love of exploration changed our understanding of the cosmos.By Anthony Greicius
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Season Two, Episode 9: Hunting in the Dark for Monsters
42:17
42:17
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Finding black rocks in the darkness of space isn’t easy, but new methods could help spot them all.By Anthony Greicius
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Season Two, Episode 8: Diamonds in the Ice
40:36
40:36
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Every year, intrepid Antarctica explorers hunt for space rocks that have fallen to Earth.By Anthony Greicius
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What’s in a name? Whether you call it a planet or an asteroid, missions that explore small worlds are always exciting.By Anthony Greicius
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Season Two, Episode 6: The Prospects of Heavy Metal
32:49
32:49
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Asteroids, ho! Pioneering space miners dream of Psyche, the largest metal asteroid in the solar system.By Anthony Greicius
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Season Two, Episode 5: Catch a Falling Star
31:38
31:38
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Why are missions like OSIRIS-REx bringing pieces of an asteroid back home?By Anthony Greicius
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Season Two, Episode 4: Deflecting Disaster
31:47
31:47
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Unlike the dinosaurs, we have a space program. There are many ways we could steer an asteroid off its path towards Earth.By Anthony Greicius
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Season Two, Episode 3: Bracing for a Crash
34:07
34:07
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If a big asteroid is heading our way, how does NASA prepare for the oncoming disaster?By Anthony Greicius
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What happens when a giant asteroid hits Earth?By Anthony Greicius
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Season Two, Episode 1 - The Sky Is Falling
27:26
27:26
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Earth is in a cosmic shooting gallery. With so many asteroids zipping around, how can we find them all before they find us?By Anthony Greicius
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The upcoming season will feature stories of asteroid exploration.By Anthony Greicius
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What's happened with InSight since it landed on Mars?By Anthony Greicius
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InSight is lining up to land on Mars. The trip from the top of the atmosphere to the surface of Mars is 6-and-a-half minutes of sheer terror.By Sarah A. Loff
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Missions to outer space have come a long way since the days of Cold War competition. Farah Alibay finds that building relationships is a big part of building spacecraft.By Sarah A. Loff
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Technology can take you to unexpected places. The MarCO cubesats, flying towards Mars with InSight, are breaking new ground on how far these small satellites can go.By Sarah A. Loff
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Ashitey Trebi-Ollennu is in charge of the InSight mission’s robotic arm and hand. His work on space robots has led him to give a helping hand back home.By Sarah A. Loff
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Earth is a living, dynamic world thanks to volcanoes and the planetary heat that fuels them. The InSight mission wants to see if Mars also has a heartbeat deep inside its cold exterior.By Sarah A. Loff
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Space missions often defy the odds, overcoming all obstacles. The people who work on these missions also face challenges to get where they are today. Marleen Martinez Sundgaard, the testbed lead for InSight, personifies this tenacious spirit.By Sarah A. Loff
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The Earth "rings" when earthquakes strike, just as vibrations through a bell create a ringing sound. The InSight mission will see if tremors cause Mars to chime with its own planetary song.By Sarah A. Loff
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Many spacecraft have died trying to get to Mars. The current record for Mars missions is 18 successes, and 25 failures. The InSight mission hopes to improve the odds.By Sarah A. Loff
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Eight stories, one mission to outer space. “On a Mission,” a new podcast from NASA’s Jet Propulsion Laboratory, launches October 29.By Sarah A. Loff
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New evidence points to the evolution of the ability for bacteria to grab nitrogen from the atmosphere some 3.2 billion years ago, about 1.2 billion years earlier than thought—with implications for finding extraterrestrial life. Lee Billings reportsBy Scientific American
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A dwarf galaxy near the Milky Way may consist of more dark matter than regular matter.* Clara Moskowitz reportsBy Scientific American
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NASA has to deal with the unexpected financial consequences of robotic missions that just keep going. Lee Billings reportsBy Scientific American
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5 Rocky Planets Found in Ancient, Distant Solar System
1:40
1:40
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The oldest group of terrestrial worlds now known formed some 11.2 billion years ago, more than six billion years before our sun and planets. Clara Moskowitz reportsBy Scientific American
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New images from a NASA orbiter reveal Beagle 2’s final resting place. Lee Billings reportsBy Scientific American
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