DiscoverOn a Mission
On a Mission

On a Mission

Author: National Aeronautics and Space Administration (NASA)

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Hear the stories behind the exploration of outer space.
21 Episodes
Eugene and Carolyn Shoemaker’s love of exploration changed our understanding of the cosmos.
Finding black rocks in the darkness of space isn’t easy, but new methods could help spot them all.
Every year, intrepid Antarctica explorers hunt for space rocks that have fallen to Earth.
What’s in a name? Whether you call it a planet or an asteroid, missions that explore small worlds are always exciting.
Asteroids, ho! Pioneering space miners dream of Psyche, the largest metal asteroid in the solar system.
Why are missions like OSIRIS-REx bringing pieces of an asteroid back home?
Unlike the dinosaurs, we have a space program. There are many ways we could steer an asteroid off its path towards Earth.
If a big asteroid is heading our way, how does NASA prepare for the oncoming disaster?
What happens when a giant asteroid hits Earth?
Earth is in a cosmic shooting gallery. With so many asteroids zipping around, how can we find them all before they find us?
The upcoming season will feature stories of asteroid exploration.
What's happened with InSight since it landed on Mars?



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.
We Are the World

We Are the World


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.
Worlds of Wonder

Worlds of Wonder


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.
Robots Lend a Hand

Robots Lend a Hand


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.
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.
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.
Music of the Spheres

Music of the Spheres


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.
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.
Comments (2)

Francisco Campa


Oct 25th

Lionel Draper

She is a true HERO,overcome all obstacles to achieve her dream, wish I had 1/4 of her grit!!!!!

Aug 4th
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