NASA's Curious Universe

Meet the Artemis III Crew

Meet the astronauts who will fly on Artemis III: Commander Randy Bresnik, Pilot Luca Parmitano, and Mission Specialists Frank Rubio and Andre Douglas. In this special presentation of Houston We Have a Podcast, the Artemis III astronauts discuss their backgrounds and training ahead of them to prepare for one of the most complex human spaceflight missions in history. For more information about Artemis III, visit nasa.gov/artemis-iii

Catching Up With Perseverance on Mars

NASA’s robotic explorers are looking for signs of ancient life on Mars. In its five years and counting on the surface of the Red Planet, the Perseverance rover has collected dozens of rock samples, including tantalizing features that could be signs of past life. Scientists want to keep studying Mars. That’s why NASA plans to send a fleet of next-generation helicopter drones and—one day—astronauts. In this episode, catch up on Perseverance’s biggest discoveries with project scientist Katie Stack Morgan and fly along with Håvard Grip, the pilot for the first-ever flight of NASA’s Ingenuity helicopter.  For more information, visit nasa.gov/perseverance

Bonus: Behind the Scenes of Artemis II with NASA Experts

In this bonus episode, go behind the scenes of key moments from Artemis II with NASA experts who made them possible. Engineers who launched the rocket describe the hours-long process that led to a successful liftoff. The leader of the closeout crew recalls his sendoff message as the astronauts were sealed inside their spacecraft. And the Artemis II lunar science lead—aka “Science Lady” in some viral social media posts—explains why the astronauts’ description of the Moon put a huge grin on her face.   For more information about Artemis II, visit nasa.gov/artemis-ii

Update: Artemis II Crew Comes Home

NASA’s Artemis II astronauts are back home. Hear reactions from the Artemis II crew—Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen—as they returned to Earth.  For more information about Artemis II, visit nasa.gov/artemis-ii

Update: Artemis II Crew Flies Around the Moon

NASA’s Artemis II mission has flown around the Moon, and its four astronauts traveled farther from Earth than anyone in history. Relive this historic mission through the astronauts’ own words, including their scientific descriptions of the Moon’s surface, as well as the role of “space plumber” troubleshooting the toilet and the astronauts’ unifying message for humanity.  For Artemis II news, visit nasa.gov/artemis-ii

Artemis II: How NASA’s Moon Mission Returns to Earth

Liftoff! NASA’s Artemis II mission launched on April 1, 2026, carrying four Moonbound astronauts. After an approximately 10-day mission, Artemis II ends with a splash. Lili Villarreal, the recovery and landing director for Artemis II, leads the team that will bring home the astronauts and their spacecraft. She describes the recovery playbook, which includes many contingency plans, and the rehearsals that have prepared her team for the mission.   For Artemis II news and the latest launch information, visit nasa.gov/artemis-ii

Artemis II: The Ground Teams Powering NASA's Moon Mission

Behind NASA’s Artemis II mission and the astronauts who will fly around the Moon, teams on the ground are essential. Explore some of the epic equipment that makes Artemis II possible—the mobile launcher, crawler-transporter, and NASA’s barge Pegasus—and meet a few of the many specialists who act as the shoulders lifting astronauts into space.       For Artemis II news and the latest launch information, visit nasa.gov/artemis-ii

Artemis II: How NASA Will Study the Moon—And the Astronauts Going There

During Artemis II, four astronauts will see the lunar surface as few humans have—and possibly, parts of the Moon’s far side that no one has seen before. Learn what lunar science questions NASA hopes to answer through the astronauts' eyes with lunar geologist Kelsey Young. And those astronauts will also be subjects of science. Jancy McPhee, associate chief scientist of NASA’s Human Research Program, explains how studying human health on Artemis II will prepare us for exploration deeper into space than ever before. For Artemis II news and the latest launch information, visit nasa.gov/artemis-ii

Artemis II: Inside NASA’s New Ride to the Moon

During Artemis II, humans will fly Orion—NASA’s next-generation spaceship designed to take us to the Moon and beyond—for the first time. Tour Orion with Branelle Rodriguez, the vehicle manager for Artemis II, to hear about the support systems that keep astronauts alive and how exactly you use the bathroom en route to the Moon. Then, pop the hood of NASA’s most powerful rocket, the Space Launch System, with David Beaman, one of its key architects.   For Artemis II news and the latest launch information, visit nasa.gov/artemis-ii

Artemis II: What NASA Learned From Launching Artemis I

In 2022, NASA launched Artemis I, an uncrewed test flight of the rocket and spacecraft that will send humans to the Moon. Go inside Firing Room 1—the nerve center for Artemis launches—and hear from the engineers who launched Artemis I, including the intricate procedures they developed just to fuel the rocket correctly. Now NASA is preparing to launch Artemis II—and to send humans around the Moon.   For Artemis II news and the latest launch information, visit nasa.gov/artemis-ii

Artemis II: Meet the Moonbound Astronauts

This year, four NASA astronauts will fly around the Moon and back for the first time since the Apollo program. Their mission is called Artemis II. It’s a key test flight that will set the stage for humans to land on the lunar South Pole for the first time and set up a long-term presence there. In this episode, meet your intrepid Artemis II crew: commander Reid Wiseman, pilot Victor Glover and mission specialists Christina Koch and Jeremy Hansen.  For Artemis II news and the latest launch information, visit nasa.gov/artemis-ii

Launching Soon: Artemis II

This year, four NASA astronauts are flying around the Moon and back—and Curious Universe is bringing you along for the ride. The mission is called Artemis II. It’s a key test flight that will set the stage for future missions to land on the lunar South Pole for the first time and set up a long-term presence there. In this limited series, get to know your Artemis II astronaut crew, go behind the scenes at NASA facilities across the country and discover the teamwork, passion and problem-solving fueling humanity’s return to the Moon—and beyond.  For Artemis II news and the latest launch information, visit nasa.gov/artemis-ii

Cosmic Dawn with Nobel Laureate John Mather

The James Webb Space Telescope is doing something astronomers dreamed about for decades: peering into our universe’s early past, a period known as cosmic dawn. A new NASA documentary—also called Cosmic Dawn—chronicles the inside story of Webb’s design, construction, and launch. John Mather, who won the 2006 Nobel Prize for Physics, proposed the telescope and led its science team for decades. In this interview, Mather talks about his life, his research, and the pre-dawn phone call telling him he had won the Nobel Prize. Find more at nasa.gov/cosmicdawn This episode was updated on Dec. 19, 2025, to provide a video version on platforms that support video.

Encore: A Day In Space

Have you ever dreamed of spending a day in space? Humans have lived aboard the International Space Station for 25 years—or more than 9,000 consecutive days. In this episode originally published in 2021, experience a day in the life of astronauts Shane Kimbrough, Megan McArthur, and Thomas Pesquet living and working on the International Space Station.

How Webb Illuminates Stars’ Cloudy Origins

In the space between stars, dark clouds of gas, dust, and ice mingle in a chemical laboratory unlike any on Earth. Ewine van Dishoeck, an astronomer who studies molecules in space and who helped develop an instrument aboard NASA’s James Webb Space Telescope, explains how Webb is revealing new details about the formation of stars and planets. This research could help unlock a key question about Earth: how did our planet end up with water and the ingredients for life?

What Webb Is Teaching Us About Our Solar System

NASA’s James Webb Space Telescope is hard at work answering our biggest questions about the birth of our universe and faraway galaxies. But some astronomers are pointing its powerful eyes much closer to home. In this episode, Caltech astronomer Katherine de Kleer explains how Webb is rewriting our understanding of objects within our solar system–from space rocks in the asteroid belt to the icy and volcanic moons of Jupiter and Saturn.

Webb's Exoplanet Research Sounds Like Sci-Fi—But It's Real

Some exoplanets—like a gas giant with rain made of glass and 5,000-mile-per-hour winds—sound like worlds dreamed up by a science fiction writer. But they’re real. From light-years away, scientists can uncover details about planets orbiting distant stars and even ask whether some exoplanets could support life. Néstor Espinoza, an astronomer at the Space Telescope Science Institute, explains how NASA’s James Webb Space Telescope is revealing new details about exoplanets, especially rocky worlds like Earth.

Why Webb's Earliest Galaxies Are Blowing Scientists' Minds

With the James Webb Space Telescope, we are seeing the early universe like never before. Webb produces beautiful images and detailed scientific data that leave astronomers in awe. In this episode, Mic Bagley, a NASA scientist on the Webb team, guides us through new discoveries made possible by Webb. Mic tells the story of a remarkable galaxy discovered in the early days of Webb’s science mission and explains why Webb is teaching us “everything” about how galaxies form and evolve.

How Lying In Bed For 60 Days Helps Astronauts

In space, microgravity changes the body. Body fluids shift from the legs toward the head, the back of our eyes flatten, we lose muscle strength, our bones lose some of their density, and even the amount of blood pumped by the heart with each beat drops. To learn more about how microgravity affects the human body and develop new ways to help astronauts stay healthy, scientists are asking dozens of volunteers to spend 60 days in bed with their heads tilted down at a specific angle. This research approach tricks the body into reacting very similarly to how it would if a person was aboard the International Space Station for a longer-term mission. Join Andreas Joshi, a volunteer who agreed to be part of this bedrest work, and two NASA scientists leading the study. They’re investigating different ways to combat space-based muscle loss and improve astronauts’ sense of balance by, among other things, teaching volunteers like Joshi to play video games with their feet.

Earth Series: What's Next for NASA Earth Science

NASA has a record of Earth observations going back more than 50 years. What might be in store for the next 50 years? In this finale of our Earth series, we hear from two scientists helping to chart the course of NASA Earth science. There are still many unanswered questions about our home planet. As the only planet that we know to have life, studying Earth is also crucial as NASA searches for other habitable worlds.

Earth Series: Monitoring the Air We Breathe

Take a deep breath, and you’re inhaling oxygen from Earth’s atmosphere. Take a walk outside, and the atmosphere is shielding you from harmful radiation. NASA research provides crucial data to understand air quality and the intricate processes happening in the sky above us. In this episode, hear the inside story of NASA’s research into the ozone layer. Left unchecked, our reliance on ozone-depleting chemicals threatened to expose the entire planet to dangerous UV radiation. We’ll also fly along with Laura Judd, a NASA scientist studying air quality in the U.S. and around the world.

Earth Series: From Space to Your Plate

Earth has an incredibly varied and ever-changing landscape—jagged mountains, arid deserts, lush rainforests, rolling wheat fields. Before NASA came on the scene, no one was keeping a systematic eye on the ground from above. NASA scientist Brad Doorn explains how one long-running satellite program collects the data farmers need to grow the crops that feed the world.

Earth Series: The Ocean, Now in Full Color

Life all over the planet—even far from the coasts—depends on the oceans. A pair of NASA satellites, PACE and SWOT, is giving us a fresh look at Earth’s water. PACE tracks color changes driven by tiny plankton, which give us a big-picture view of ocean life. By measuring sea level height from space, SWOT shows ocean currents and other features in new detail. NASA scientists Cecile Rousseaux, Kelsey Bisson, and Josh Willis dive into new research with a lot of color and a little bit of rock and roll.

Earth Series: How NASA Sees Our Blue Marble

NASA is an exploration agency, and one of our missions is to know our home. In the 1960s, NASA astronauts orbiting the Moon captured a revelatory view of Earth. Today, NASA explores our home planet with a fleet of dozens of spacecraft. In this episode–the first in a miniseries all about Earth–we take in the view from space with Karen St. Germain, the director of NASA’s Earth Science Division.

Welcome to Earth

There’s one planet NASA studies more than any other: Earth. With our unique vantage point from space, NASA collects information about our home in ways nobody else can. In this podcast miniseries, celebrate our home planet by learning how NASA studies Earth—including unique views of ocean color and sea level, land data that help farmers improve crop production, and researching our atmosphere from the air we breathe to layers high above us that protect every living thing on the planet.

Curious Universe Live: Art and Science with Astronaut Matthew Dominick

NASA has a long history of bringing together science, engineering and art. Space exploration is a human endeavor—one that requires creativity. In this special live episode, NASA astronaut Matthew Dominick and comedian and musician Reggie Watts talk flow states, aircraft ejector seats and more. Plus, a new NASA tool that lets you make music from iconic Hubble Space Telescope imagery.

Inside the Team That Keeps Hubble Flying

When it launched in 1990, NASA expected the Hubble Space Telescope to last for about 15 years. Thirty-five years later, Hubble is still showing us the universe as no other telescope can. Go behind the scenes with Morgan Van Arsdall, deputy operations manager for Hubble, on an audio tour of Hubble’s control center. Morgan’s team keeps Hubble operating smoothly, and when something goes wrong, they snap into action to fix it. Plus, hear how Hubble tag-teams with newer observatories—including the James Webb Space Telescope—and continues to push the frontiers of astronomy.

How NASA Found the Ingredients For Life on an Asteroid

How did life begin? It’s one of science’s biggest questions, but it’s impossible to answer on Earth, where ancient clues have been buried by the planet’s shifting surface. Instead, scientists are looking beyond our own planet, to asteroids like Bennu, a distant fragment of a lost world. In 2023, NASA’s OSIRIS-REx spacecraft collected a sample of Bennu’s surface and brought it back to Earth. Ever since, scientists have been hard at work studying the fragments of asteroid Bennu. Now, they’re ready to reveal the results—our best look yet at a time capsule from the early solar system that once fostered the ingredients for life.

Why the Moon’s Icy South Pole is a Hot Target for NASA

The Moon’s South Pole is a bizarre landscape. Mountain ridges glow in perpetual sunlight while deep craters freeze in billion-year-old shade. Yet hidden in the depths of those shadowed craters, under temperatures almost three times colder than the frostiest day in Antarctica, lurks something familiar–water ice. In the future, that ice could sustain human explorers or be broken apart into hydrogen and oxygen to refuel rockets. Join Brett Denevi, Artemis III geology team lead, to learn why NASA plans to land astronauts on the Moon’s South Pole later this decade. Then with Michelle Munk, NASA space technology chief architect, meet the robot Moon landers scouting ahead of Artemis which will drill beneath the regolith and test technologies designed to help future human explorers survive the Pole’s extreme conditions.

The Mind-Bending Math Inside Black Holes

Black holes are mysterious, far away, and can bend the fabric of reality itself—but we're learning more about them all the time. Ronald Gamble, a NASA theoretical astrophysicist, uses math, computer coding, and a dash of creativity to peer inside some of the universe's most extreme objects. We'll explore what it would feel like to get pulled into a black hole and what people get wrong about black holes. And we'll answer questions from curious listeners, including, "What would happen if a black hole ate nothing but magnetized material?"