On a Mission

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.

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.

Aaron Yazzie and others explain how, by scooping dirt and drilling rocks, rovers are digging deeper into the mysteries of Mars.

Aaron Yazzie and others explain how, by scooping dirt and drilling rocks, rovers are digging deeper into the mysteries of Mars.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

In the fourth season of “On a Mission” we'll be transported to the Red Planet with all five of NASA's Mars rovers.

In the fourth season of “On a Mission” we'll be transported to the Red Planet with all five of NASA's Mars rovers.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.