Gravity Assist

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Dr. Jim Green, NASA Chief Scientist, takes you on a guided tour of the solar system and beyond.

National Aeronautics and Space Administration (NASA)


    • Aug 12, 2022 LATEST EPISODE
    • infrequent NEW EPISODES
    • 196 EPISODES

    4.6 from 402 ratings Listeners of Gravity Assist that love the show mention: solar system, jim is the best, nasa, nom nom, planets, scientists, space, science, students, annoying, background, pure, fascinating, extremely, host, really enjoy, audio, school, series, interested.



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    Latest episodes from Gravity Assist

    Season 5, Episode 32: Finale: Thanks for All the Gravity Assists

    Play Episode Listen Later Aug 12, 2022


    On the Gravity Assist podcast we have interviewed dozens of scientists, engineers, and others dedicated to the mission of NASA space exploration. After five years, the show is coming to a close. Here are some final thoughts and episode highlights from the podcast team.

    Gravity Assist Finale: Thanks for All the Gravity Assists

    Play Episode Listen Later Aug 12, 2022


    On the Gravity Assist podcast we have interviewed dozens of scientists, engineers, and others dedicated to the mission of NASA space exploration. After five years, the show is coming to a close. Here are some final thoughts and episode highlights from the podcast team.

    Season 5, Episode 31: Meet a Webb Scientist Who Looks Back in Time

    Play Episode Listen Later Jul 29, 2022


    The James Webb Space Telescope awed the world on July 12 with its first images and data. And it's just getting started with its exploration of the cosmos. Dr. John Mather, the observatory's senior project scientist, has been working toward this milestone for more than 25 years.

    Gravity Assist: Meet a Webb Scientist Who Looks Back in Time

    Play Episode Listen Later Jul 29, 2022


    The James Webb Space Telescope awed the world on July 12 with its first images and data. And it's just getting started with its exploration of the cosmos. Dr. John Mather, the observatory's senior project scientist, has been working toward this milestone for more than 25 years.

    Season 5, Ep. 30: Gravity Assist: How We Make Webb (and Hubble) Images

    Play Episode Listen Later Jul 8, 2022


    The world will get a first glimpse of the universe as never before when the first images from the James Webb Space Telescope come out on July 12. And this is only the beginning — the telescope will deliver all kinds of insights about galaxies, planets, and more, for years to come.

    Gravity Assist: How We Make Webb (and Hubble) Images

    Play Episode Listen Later Jul 8, 2022


    The world will get a first glimpse of the universe as never before when the first images from the James Webb Space Telescope come out on July 12. And this is only the beginning — the telescope will deliver all kinds of insights about galaxies, planets, and more, for years to come.

    Gravity Assist: It's Raining Diamonds on These Planets

    Play Episode Listen Later Jul 1, 2022


    Uranus and Neptune are two of the many exciting and mysterious objects in our universe that the James Webb Space Telescope will soon begin to explore. Learn more about these planets and the Webb telescope's upcoming observations from astrophysicist Naomi Rowe-Gurney, our guest on this week's Gravity Assist.

    Gravity Assist: It's Raining Diamonds on These Planets

    Play Episode Listen Later Jul 1, 2022


    Uranus and Neptune are two of the many exciting and mysterious objects in our universe that the James Webb Space Telescope will soon begin to explore. Learn more about these planets and the Webb telescope's upcoming observations from astrophysicist Naomi Rowe-Gurney, our guest on this week's Gravity Assist.

    Season 5, Episode 28: This is What Mars Sounds Like, with Nina Lanza

    Play Episode Listen Later Jun 17, 2022


    With two microphones aboard the Perseverance rover, we can listen to Mars from its surface like never before. In addition to hearing how wind sounds on Mars, we can also listen to Perseverance driving on the surface, the Ingenuity helicopter flying nearby, and more.

    Gravity Assist: This is What Mars Sounds Like, with Nina Lanza

    Play Episode Listen Later Jun 17, 2022


    With two microphones aboard the Perseverance rover, we can listen to Mars from its surface like never before. In addition to hearing how wind sounds on Mars, we can also listen to Perseverance driving on the surface, the Ingenuity helicopter flying nearby, and more.

    Season 5, Episode 27: What Will We Eat on Mars?

    Play Episode Listen Later May 20, 2022


    Astronauts on the International Space Station have been conducting experiments to grow food, including peppers and radishes. Christina Johnson, a NASA postdoc fellow at NASA's Kennedy Space Center in Florida, has been working on a variety of techniques to grow food in space. Learn what she thinks about the future of growing food beyond our planet.

    Gravity Assist: What Will We Eat on Mars?

    Play Episode Listen Later May 20, 2022


    Astronauts on the International Space Station have been conducting experiments to grow food, including peppers and radishes. Christina Johnson, a NASA postdoc fellow at NASA's Kennedy Space Center in Florida, has been working on a variety of techniques to grow food in space. Learn what she thinks about the future of growing food beyond our planet.

    Season 5, Episode 26: How to Grow Food on the Moon

    Play Episode Listen Later May 13, 2022


    Space botanists are working on strategies to grow crops on the lunar surface, as NASA makes strides toward sending astronauts to the Moon through the Artemis program.

    Gravity Assist: How to Grow Food on the Moon

    Play Episode Listen Later May 13, 2022


    Space botanists are working on strategies to grow crops on the lunar surface, as NASA makes strides toward sending astronauts to the Moon through the Artemis program.

    Season 5,Episode 25: Walking on Broken Ice, with Catherine Walker

    Play Episode Listen Later Apr 22, 2022


    An ice shelf collapsed in East Antarctica in March 2022, concerning scientists who track melting glaciers, sea level rise, and other effects of climate change.

    walking catherine walker east antarctica
    Gravity Assist: Walking on Broken Ice, with Catherine Walker

    Play Episode Listen Later Apr 22, 2022


    An ice shelf collapsed in East Antarctica in March 2022, concerning scientists who track melting glaciers, sea level rise, and other effects of climate change.

    walking gravity assist catherine walker east antarctica
    Season 5, Episode 24: Do Other Planets Make Pollution?

    Play Episode Listen Later Apr 8, 2022


    On a quest to find out if we are not alone in the universe, Ravi Kopparapu at NASA Goddard studies how we could use telescopes to detect signs of life beyond our solar system.

    pollution planets nasa goddard
    Gravity Assist: Do Other Planets Make Pollution? With Ravi Kopparapu

    Play Episode Listen Later Apr 8, 2022


    On a quest to find out if we are not alone in the universe, Ravi Kopparapu at NASA Goddard studies how we could use telescopes to detect signs of life beyond our solar system.

    Season 5, Episode 23: These Space Rocks Have Seen It All

    Play Episode Listen Later Mar 18, 2022


    How do we know if a rock came from the Moon, Mars, or an asteroid? Planetary scientist Neyda Abreu has looked inside all kinds of meteorites to understand where they came from and what's inside them. She also traveled to Antarctica to hunt for space rock treasure.

    Gravity Assist: These Space Rocks Have Seen It All, with Neyda Abreu

    Play Episode Listen Later Mar 18, 2022


    How do we know if a rock came from the Moon, Mars, or an asteroid? Planetary scientist Neyda Abreu has looked inside all kinds of meteorites to understand where they came from and what's inside them. She also traveled to Antarctica to hunt for space rock treasure.

    Season 5, Episode 22: Using Webb to Trace Galactic Histories

    Play Episode Listen Later Mar 4, 2022


    The James Webb Space Telescope, which launched Dec. 25, will allow us to see the farthest galaxies and better understand the origins of the Milky Way. Aaron Yung at NASA's Goddard Space Flight Center is preparing for these historic observations by simulating what Webb will see in the early universe.

    Gravity Assist: Using Webb to Trace Galactic Histories, with Aaron Yung

    Play Episode Listen Later Mar 4, 2022


    The James Webb Space Telescope, which launched Dec. 25, will allow us to see the farthest galaxies and better understand the origins of the Milky Way. Aaron Yung at NASA's Goddard Space Flight Center is preparing for these historic observations by simulating what Webb will see in the early universe.

    Season 5, Episode 21: In Case of Space Station Emergency

    Play Episode Listen Later Feb 18, 2022


    In space, we have to expect the unexpected. Sunny Panjwani of NASA's Johnson Space Center shares how he got thrown into an emergency situation on his first day as a flight controller. His team makes sure that astronauts have a safe environment on board the International Space Station.

    Gravity Assist: In Case of Space Station Emergency, with Sunny Panjwani

    Play Episode Listen Later Feb 18, 2022


    In space, we have to expect the unexpected. Sunny Panjwani of NASA's Johnson Space Center shares how he got thrown into an emergency situation on his first day as a flight controller. His team makes sure that astronauts have a safe environment on board the International Space Station.

    Gravity Assist: Meet NASA's New Chief Scientist, Kate Calvin

    Play Episode Listen Later Jan 28, 2022


    Climate change is one of the most important issues facing our planet, and NASA has lots of space missions and programs in the works to monitor and understand its drivers and effects. Kate Calvin, NASA's new chief scientist, is also the agency's senior climate advisor. In this episode, Kate previews  upcoming Earth science missions and discusses cut

    Gravity Assist: Meet NASA's New Chief Scientist and Senior Climate Advisor, with Kate Calvin

    Play Episode Listen Later Jan 28, 2022


    Climate change is one of the most important issues facing our planet, and NASA has lots of space missions and programs in the works to monitor and understand its drivers and effects. Kate Calvin, NASA's new chief scientist, is also the agency's senior climate advisor. In this episode, Kate previews  upcoming Earth science missions and discusses cut

    Season 5, Episode 19: A New Set of X-Ray Eyes is Launching

    Play Episode Listen Later Dec 3, 2021


    NASA is about to launch a new spacecraft to look at the universe in X-ray light. The Imaging X-Ray Polarimetry Explorer, IXPE, will look at extreme objects such as black holes, neutron stars, and supernovae, asking fundamental questions about how high-energy light gets produced.

    Gravity Assist: A New Set of X-Ray Eyes is Launching, with Martin Weisskopf

    Play Episode Listen Later Dec 3, 2021


    NASA is about to launch a new spacecraft to look at the universe in X-ray light. The Imaging X-Ray Polarimetry Explorer, IXPE, will look at extreme objects such as black holes, neutron stars, and supernovae, asking fundamental questions about how high-energy light gets produced.

    Season 5, Episode 18: How to Move an Asteroid, with Nancy Chabot

    Play Episode Listen Later Nov 19, 2021


    NASA's Double Asteroid Redirection Test Mission, or DART, will deliberately impact a small asteroid called Dimorphos to deflect its orbit around a bigger object, Didymos. Nancy Chabot, planetary scientist at the Johns Hopkins University Applied Physics Laboratory, has the details.

    Gravity Assist: How to Move an Asteroid, with Nancy Chabot

    Play Episode Listen Later Nov 19, 2021


    NASA's Double Asteroid Redirection Test Mission, or DART, will deliberately impact a small asteroid called Dimorphos to deflect its orbit around a bigger object, Didymos. Nancy Chabot, planetary scientist at the Johns Hopkins University Applied Physics Laboratory, has the details.

    Season 5, Episode 17: Solar Power for the Moon

    Play Episode Listen Later Oct 29, 2021


    As NASA prepares to send astronauts to the Moon through the Artemis program, engineers are working on technologies that will give these explorers power – solar power, that is. In space, the harsh radiation and huge temperature changes make for a challenging environment.

    Gravity Assist: Solar Power for the Moon, with Lyndsey McMillon-Brown

    Play Episode Listen Later Oct 29, 2021


    As NASA prepares to send astronauts to the Moon through the Artemis program, engineers are working on technologies that will give these explorers power – solar power, that is. In space, the harsh radiation and huge temperature changes make for a challenging environment.

    Season 5, Episode 16:Meet a Space Weather Scientist

    Play Episode Listen Later Oct 22, 2021


    Yaireska Collado-Vega leads a team at NASA's Goddard Spacecraft Center that is studying the solar weather environment so that robots and people exploring space can be protected. In this episode of Gravity Assist, she describes the excitement and challenges of understanding space weather, and how she got to be a NASA scientist.

    Gravity Assist: Meet a Space Weather Scientist, with Yaireska Collado-Vega

    Play Episode Listen Later Oct 22, 2021


    Yaireska Collado-Vega leads a team at NASA's Goddard Spacecraft Center that is studying the solar weather environment so that robots and people exploring space can be protected. In this episode of Gravity Assist, she describes the excitement and challenges of understanding space weather, and how she got to be a NASA scientist.

    Season 5, Episode 15: Lucy and the Space Fossils, with Hal Levison

    Play Episode Listen Later Oct 8, 2021


    To get a more complete understanding of the full history of our solar system, NASA is sending a spacecraft called Lucy to investigate the Trojans, mysterious small objects that share an orbit of the Sun with Jupiter. Principal investigator Hal Levison of the Southwest Research Institute

    Gravity Assist: Lucy and the Space Fossils, with Hal Levison

    Play Episode Listen Later Oct 8, 2021


    To get a more complete understanding of the full history of our solar system, NASA is sending a spacecraft called Lucy to investigate the Trojans, mysterious small objects that share an orbit of the Sun with Jupiter. Principal investigator Hal Levison of the Southwest Research Institute

    Season 5, Episode 14: Goodbye Saturn, Hello Earth

    Play Episode Listen Later Aug 27, 2021


    Janelle Wellons likes to say that she operates “fancy space cameras.” At NASA's Jet Propulsion Laboratory, she creates commands that allow spacecraft to take valuable scientific data in our solar system and here at planet Earth.

    Gravity Assist: Goodbye Saturn, Hello Earth, with Janelle Wellons

    Play Episode Listen Later Aug 27, 2021


    Janelle Wellons likes to say that she operates “fancy space cameras.” At NASA's Jet Propulsion Laboratory, she creates commands that allow spacecraft to take valuable scientific data in our solar system and here at planet Earth.

    Season 5, Episode 13: Freaky Physics on the Space Station

    Play Episode Listen Later Aug 6, 2021


    The laws of physics get very, very weird in the realm of particles too small for the eye to see. Aboard the International Space Station, an experiment called the Cold Atom Laboratory (CAL) is exploring how the universe works .

    Gravity Assist: Freaky Physics on the Space Station, with Ethan Elliott

    Play Episode Listen Later Aug 6, 2021


    The laws of physics get very, very weird in the realm of particles too small for the eye to see. Aboard the International Space Station, an experiment called the Cold Atom Laboratory (CAL) is exploring how the universe works .

    Season 5, Episode 12: Diving Into NASA History

    Play Episode Listen Later Jul 30, 2021


    In honor of National Intern Day, Gravity Assist features Felicia Ragucci, an undergraduate at Dartmouth College who recently completed an internship with NASA's History Office and the Office of the Chief Scientist. During her time at NASA, Felicia researched the history of the Neutral Buoyancy Simulator, an underwater training facility where astron

    Gravity Assist: Diving Into NASA History, with NASA Intern Felicia Ragucci

    Play Episode Listen Later Jul 30, 2021


    In honor of National Intern Day, Gravity Assist features Felicia Ragucci, an undergraduate at Dartmouth College who recently completed an internship with NASA's History Office and the Office of the Chief Scientist. During her time at NASA, Felicia researched the history of the Neutral Buoyancy Simulator, an underwater training facility where astron

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