Uploaded November 2025 | Updated September 2026, 2 weeks ago
If light can’t escape black holes, how do we know where they are? The regions around them tell an incredible story. From blazing coronas and swirling accretion disks to powerful jets that stretch millions of miles, these extreme environments reveal black holes' secrets and how these mysterious objects shape the universe.
Join host Sophia Roberts as she talks with researchers Jenna Cann and Cecilia Chirenti at NASA Goddard about how scientists study these mysterious structures, the challenges of observing the unseeable, and the discoveries that continue to change our understanding of black holes.
Music credits from Universal Production Music:
“Breaking the Barrier,” David Bertrand Holland
“Dust Spirals,” Alexandre Prodhomme
“Miniature Universe,” Geoffrey Wilkinson
“Urban Decay,” Sarah Natasha Penelope Warne
“Solar Plexus,” by Brandon Seliga
“Polygraph,” Eric Chevalier
“The Mischief Makers,” Joaquim Badia
“Maelstrom Dream,” Lucie Rose
“The Truth Will Out,” Chris Dony and Beth Perry
Credit: NASA's Goddard Space Flight Center
Sophia Roberts (eMITS): Lead Producer
Krystopher Kim (eMITS): Lead Visualizer
Jeanette Kazmierczak (University of Maryland, College Park): Science Writer
Cecilia Chirenti (University of Maryland, College Park): Researcher
Jenna Cann (UMBC, University of Maryland): Researcher
Robert Andreoli (eMITS): Camera
John Philyaw (eMITS): Camera
Aaron E. Lepsch (ADNET): Technical Support
This video can be freely shared and downloaded at svs.gsfc.nasa.gov/14905. While the video in its entirety can be shared without permission, the music and some individual imagery may have been obtained through permission and may not be excised or remixed in other products. Specific details on such imagery may be found here: svs.gsfc.nasa.gov/14922. For more information on NASA’s media guidelines, visit nasa.gov/nasa-brand-center/images-and-media/.
If you liked this video, subscribe to the NASA Goddard YouTube channel: youtube.com/NASAGoddard
Follow NASA’s Goddard Space Flight Center
· Instagram: instagram.com/nasagoddard
· X: twitter.com/NASAGoddard
· Facebook: facebook.com/NASAGoddard
· Flickr: flickr.com/photos/gsfc
If light can’t escape black holes, how do we know where they are? The regions around them tell an incredible story. From blazing coronas and swirling accretion disks to powerful jets that stretch millions of miles, these extreme environments reveal black holes' secrets and how these mysterious objects shape the universe.
Join host Sophia Roberts as she talks with researchers Jenna Cann and Cecilia Chirenti at NASA Goddard about how scientists study these mysterious structures, the challenges of observing the unseeable, and the discoveries that continue to change our understanding of black holes.
Music credits from Universal Production Music:
“Breaking the Barrier,” David Bertrand Holland
“Dust Spirals,” Alexandre Prodhomme
“Miniature Universe,” Geoffrey Wilkinson
“Urban Decay,” Sarah Natasha Penelope Warne
“Solar Plexus,” by Brandon Seliga
“Polygraph,” Eric Chevalier
“The Mischief Makers,” Joaquim Badia
“Maelstrom Dream,” Lucie Rose
“The Truth Will Out,” Chris Dony and Beth Perry
Credit: NASA's Goddard Space Flight Center
Sophia Roberts (eMITS): Lead Producer
Krystopher Kim (eMITS): Lead Visualizer
Jeanette Kazmierczak (University of Maryland, College Park): Science Writer
Cecilia Chirenti (University of Maryland, College Park): Researcher
Jenna Cann (UMBC, University of Maryland): Researcher
Robert Andreoli (eMITS): Camera
John Philyaw (eMITS): Camera
Aaron E. Lepsch (ADNET): Technical Support
This video can be freely shared and downloaded at svs.gsfc.nasa.gov/14905. While the video in its entirety can be shared without permission, the music and some individual imagery may have been obtained through permission and may not be excised or remixed in other products. Specific details on such imagery may be found here: svs.gsfc.nasa.gov/14922. For more information on NASA’s media guidelines, visit nasa.gov/nasa-brand-center/images-and-media/.
If you liked this video, subscribe to the NASA Goddard YouTube channel: youtube.com/NASAGoddard
Follow NASA’s Goddard Space Flight Center
· Instagram: instagram.com/nasagoddard
· X: twitter.com/NASAGoddard
· Facebook: facebook.com/NASAGoddard
· Flickr: flickr.com/photos/gsfc

![NASA Explains Gamma-ray Bursts
Watch to learn more about gamma-ray bursts, the most powerful explosions in the cosmos. They first came to the attention of astronomers in the 1970s when new satellites detected this surprising phenomenon. Over decades, scientists have found that these blasts could be detected somewhere in the sky almost every day, and that they were both extremely distant — the closest known erupted over 100 million light-years away — and enormously powerful. Gamma-ray bursts are now linked to the explosive deaths of massive stars and to mergers of compact objects, like neutron stars and black holes, but many puzzles remain.
Music credit: “Time Science,” Steve Fawcett [ASCAP] and Katherine F Martin [BMI], Universal Production Music
Credit: NASA’s Goddard Space Flight Center
Producer: Scott Wiessinger (eMITS) Science writers: Francis Reddy (University of Maryland College Park)
Jeanette Kazmierczak (University of Maryland College Park) Scientist: Brad Cenko (NASA/GSFC)
Narrator: Scott Wiessinger (eMITS)
This video can be freely shared and downloaded at https://svs.gsfc.nasa.gov/14738. While the video in its entirety can be shared without permission, the music and some individual imagery may have been obtained through permission and may not be excised or remixed in other products. Specific details on such imagery may be found here: https://svs.gsfc.nasa.gov/14738. For more information on NASA’s media guidelines, visit https://nasa.gov/multimedia/guidelines.
If you liked this video, subscribe to the NASA Goddard YouTube channel: https://www.youtube.com/NASAGoddard
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· Flickr http://www.flickr.com/photos/gsfc NASA Explains Gamma-ray Bursts](https://i.ytimg.com/vi/Sc7Qd08ugQw/mqdefault.jpg)
![NASAs Roman Space Telescope Hardware Highlights: Summer/Fall 2025
This video, covering the second half of 2025, opens with a person entering NASA’s Goddard Space Flight Center’s largest clean room, the Spacecraft Systems Development and Integration Facility. The room is a class 10,000 clean room with over one million cubic feet of space.
The outside half of Roman, called OSD, contains the solar panels & protective layers. The Deployable Aperture Cover protects the mirrors during launch and then unfolds to help shield them from sunlight does a test deployment. During this test, lines connect to it & pull upward to negate Earth’s gravitational forces, which Roman will not experience in space. Then the Solar Array Sun Shield panels deploy. There are four panels that move. They fold against the spacecraft to fit in the rocket fairing & deploy in space to make a large flat plane that both collects light to generate electricity and helps keep the rest of Roman cool.
In preparation for additional testing, technicians put a clean tent over OSD and transport it out of the clean room. They push it into the acoustic test chamber where a six-foot-tall horn projects up to 150-decibel sound at varying frequencies. The other tests are on two vibration tables that shake Roman along all three axes: up/down, left/right & forward/backward. Engineers attach hundreds of sensors and run tests of increasing intensity. During and after each test, they carefully study the data to make sure that Roman is behaving as they anticipated.
While these tests occur, Roman’s inside half, containing the mirrors, instruments & support equipment, move into Goddard’s largest thermal vacuum chamber, the SES (Space Environment Simulator). This 40-foot-tall chamber can simulate the vacuum of space & the wide temperature range that Roman will experience there: from -310° F (-190° C) to 302° F (150° C). The move to the chamber happens without a clean tent, so the entire path was cleaned, and all the workers dress in full clean-room garb to ensure that no dirt contaminates the sensitive parts of the spacecraft. Once the two layers of doors are sealed, Roman spends 72 days inside running through tests at various temperatures and with equipment turned on to ensure that it works at low temperature in a vacuum. A special array installed above the mirror projects light that engineers use to test the optics and sensors.
After leaving the SES chamber and returning to the SSDIF, Roman’s primary and secondary mirrors are carefully cleaned and inspected. It is a balance to get the mirrors as clean as possible while not cleaning too aggressively and damaging the delicate surfaces. The mirrors are cleaned both horizontally with a gentle vacuum cleaner and vertically with brushes. After this cleaning, every inch is visually inspected and photographed to record the exact optical characteristics. This was the last time the primary mirror would be accessible.
Finally, in late November, Roman’s two halves are joined together to form the complete observatory. The process takes the better part of a day. Two guide poles are installed on the inside half to help direct OSD down onto it. At various times, the clearances between the two halves are only a few inches. With the observatory complete, it begins preparing for another round of deployments and testing.
On track to launch in the fall of 2026, Roman is NASA’s next flagship astrophysics mission. An infrared survey telescope with the same resolution as Hubble but at least 100 times the field of view, Roman is being built and tested at NASA Goddard. Partners from around the globe are contributing to this effort.
Music credit: “Our Journey Begins,” Dan Thiessen [BMI], Universal Production Music
Credit: NASA’s Goddard Space Flight Center
Producer: Scott Wiessinger (eMITS)
Videographers: Sophia Roberts (eMITS)
Scott Wiessinger (eMITS)
Rob Andreoli (eMITS)
John Philyaw (eMITS)
Public affairs officer: Claire Andreoli (NASA/GSFC)
Editor: Scott Wiessinger (eMITS)
Science Writer: Ashley Balzer (eMITS)
0:00 - Roman in the Clean Room
0:14 - Deployment Tests
0:33 - Acoustic and Vibration Tests
1:05 - Thermal Vacuum Testing
1:40 - Mirror Cleaning
1:56 - Joining the Halves
This video can be freely shared and downloaded at https://svs.gsfc.nasa.gov/14491. While the video in its entirety can be shared without permission, the music and some individual imagery may have been obtained through permission and may not be excised or remixed in other products. Specific details on such imagery may be found here: https://svs.gsfc.nasa.gov/14491. For more information on NASA’s media guidelines, visit https://www.nasa.gov/nasa-brand-center/images-and-media/.
If you liked this video, subscribe to the NASA Goddard YouTube channel: https://www.youtube.com/NASAGoddard
Follow NASA’s Goddard Space Flight Center
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· Flickr http://www.flickr.com/photos/gsfc NASAs Roman Space Telescope Hardware Highlights: Summer/Fall 2025](https://i.ytimg.com/vi/Sk4anYfPyb0/mqdefault.jpg)

![NASA’s Illuminate: The Moon’s Tan Lines
Did you know the Moon has “tan lines”?
These tan lines, which feature bright tendrils and swirls amid darkened areas, are caused by the Sun. But that’s only half of the story. These weathered patches also give us clues as to what’s going on below the lunar surface.
NASA’s Illuminate: Out-of-this-world images shining light on our Sun and solar system.
Music credit: Rich Formula” by Theophile Laszio Moussouni [SACEM] from Universal Production Music
Credit: NASAs Goddard Space Flight Center
Producer: Lacey Young (eMITS)
Writer: Lacey Young (eMITS), Mara Johnson-Groh (eMITS)
Narrator: Estefania Morales Mitre (eMITS)
Sound Effects:
Pixabay
This video can be freely shared and downloaded at https://svs.gsfc.nasa.gov/14954. While the video in its entirety can be shared without permission, the music and some individual imagery may have been obtained through permission and may not be excised or remixed in other products. Specific details on such imagery may be found here: https://svs.gsfc.nasa.gov/14954. For more information on NASA’s media guidelines, visit https://www.nasa.gov/nasa-brand-center/
If you liked this video, subscribe to the NASA Goddard YouTube channel: https://www.youtube.com/NASAGoddard
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· Flickr: http://www.flickr.com/photos/gsfc NASA’s Illuminate: The Moon’s Tan Lines](https://i.ytimg.com/vi/TB64fBRlqK8/mqdefault.jpg)
![NASAs Swift Mission Gets a Boost
After more than two decades, the orbit of NASA’s Neil Gehrels Swift Observatory has entered a phase of rapid decay. While NASA could allow the observatory to re-enter Earth’s atmosphere, as many missions do at the ends of their lifetimes, this situation has presented an opportunity to advance American spacecraft servicing technology while also extending the life of a productive science mission. To accomplish this, NASA awarded the U.S. company Katalyst Space a contract in September 2025 to attempt to raise Swift’s orbit.
Credit: NASA’s Goddard Space Flight Center/Katalyst Space/Northrop Grumman
Music credits:
“All or Nothing,” Max Cameron Concors [ASCAP], Universal Production Music
“Time to Rise,” Charles Maurice Blunt [ASCAP], Steve Joseph Samson [SOCAN], and Andi Vax [PRS], Universal Production Music
Credit: NASA’s Goddard Space Flight Center
Producer: Sophia Roberts (eMITS)
Videographers: Sophia Roberts (eMITS) Scott Wiessinger (eMITS)
Public affairs officer: Claire Andreoli (NASA/GSFC)
Editor: Sophia Roberts (eMITS)
Science Writer: Jeanette Kazmierczak (University of Maryland College Park)
Scientists: Regina Caputo (NASA/GSFC), Brad Cenko (NASA/GSFC)
This video can be freely shared and downloaded at https://svs.gsfc.nasa.gov/15051. While the video in its entirety can be shared without permission, the music and some individual imagery may have been obtained through permission and may not be excised or remixed in other products. Specific details on such imagery may be found here: https://svs.gsfc.nasa.gov/15051. For more information on NASA’s media guidelines, visit https://www.nasa.gov/nasa-brand-center/images-and-media/.
If you liked this video, subscribe to the NASA Goddard YouTube channel: https://www.youtube.com/NASAGoddard
Follow NASA’s Goddard Space Flight Center
· Instagram: http://www.instagram.com/nasagoddard
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· Flickr: http://www.flickr.com/photos/gsfc NASAs Swift Mission Gets a Boost](https://i.ytimg.com/vi/THcvpKWZq4M/mqdefault.jpg)

![Introducing NASAs Roman Space Telescope
Named after NASA’s first chief astronomer, the ‘mother of the Hubble Space Telescope,’ the Nancy Grace Roman Space Telescope will have a field of view at least 100 times larger than Hubbles, potentially measuring light from a billion galaxies in its lifetime. This observatory will also be able to block starlight to directly see exoplanets and planet-forming disks, complete a statistical census of planetary systems in our galaxy, and settle essential questions in the areas of dark energy, exoplanets, and infrared astrophysics.
For a version of this video with audio descriptions: https://youtu.be/BYWi_yX0GTs
Music credit: “Fire,” by Frederick Helmut Wiedmann [GMR], Universal Production Music
Credit: NASAs Goddard Space Flight Center
Scott Wiessinger (eMITS): Producer/editor
Barb Mattson (University of Maryland College Park): Narrator
Scott Wiessinger (eMITS): Writer
Ashley Balzer (eMITS): Science Writer
Claire Andreoli (NASA/GSFC): Public Affairs Officer
Adriana Manrique Gutierrez (eMITS): Animator
Michael Lentz (eMITS): Animator
Krystofer Kim (eMITS): Animator
Jonathan North (eMITS): Animator
Dominic Benford (NASA/HQ): Science Advisor
This video can be freely shared and downloaded at https://svs.gsfc.nasa.gov/14969. While the video in its entirety can be shared without permission, the music and some individual imagery may have been obtained through permission and may not be excised or remixed in other products. Specific details on such imagery may be found here: https://svs.gsfc.nasa.gov/14969. For more information on NASA’s media guidelines, visit https://www.nasa.gov/nasa-brand-center/images-and-media/.
If you liked this video, subscribe to the NASA Goddard YouTube channel: https://www.youtube.com/NASAGoddard
Follow NASA’s Goddard Space Flight Center
· Instagram: http://www.instagram.com/nasagoddard
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· Flickr: http://www.flickr.com/photos/gsfc Introducing NASAs Roman Space Telescope](https://i.ytimg.com/vi/TcjuucVEB5g/mqdefault.jpg)

![Visualizing NASAs Next Lunar Flyby
Moon science? Yes. Preparing for our long-term future in space? Also yes. ✅✅
The Artemis II lunar flyby mission will give humanity a new perspective on the Moon, and test the systems and technology that will eventually bring astronauts to the lunar surface to stay.
Artemis II Visualization Lead Ernie Wright has simulated views of the flyby using detailed topographic maps of the lunar terrain and photorealistic lighting scenarios. The Artemis II crew members are using these visualizations to prepare for their historic mission, which will pave the way for future exploration of the Moon’s surface and beyond.
Learn more: https://www.nasa.gov/humans-in-space/artemis-ii-science/
Video description:
0:00 Montage of astronauts adjusting their flight suits and equipment, and descending from a spacecraft exit.
0:09 Illustration of a future astronaut on the lunar surface, with deployed hardware reflected in their visor.
0:12 Illustration of a future Moon crew at work on the lunar surface, with a rover in the background.
0:15 Illustration of an astronaut kneeling on the reddish-brown surface of Mars.
0:18 Montage of images of the Artemis mission and NASA employees.
0:23 Artemis logo against a purple and pink background.
0:25 Visualizations of Artemis spacecraft leaving Earth orbit for the Moon.
0:30 An astronaut manipulates a joystick.
0:36 Ernie Wright, Artemis II Visualization Lead, NASA Goddard, talking on camera.
0:41 Visualization of what the Artemis II crew might see as they fly by the Moon.
0:45 Maps comparing areas of the lunar surface that were visible to Apollo vs. Artemis crews. Artemis crews will see far more.
0:49 Animation of a possible trajectory for the Artemis II lunar flyby mission.
0:52 Data visualizations of the Apollo 8 spacecraft over the lunar surface with Earth over the Moon’s horizon.
0:59 Visualization zooming through the spacecraft, with Earthrise framed through a central window.
1:09 Views of Artemis II spacecraft with Earth’s horizon looming large in the background.
1:23 The Orion capsule speeds towards the Moon.
1:27 Artemis logo.
1:29 NASA logo.
Credit: NASA’s Goddard Space Flight Center
Ernie Wright: Visualizer/Interviewee
Dan Gallagher: Producer/Graphics
Rob Andreoli: Videographer
John D. Philyaw: Videographer
Krystofer Kim: Animator
Michael Lentz: Animator
Chris Smith: Animator
Kelsey Young: Photographer
James Blair: Photographer
Lonnie Shekhtman: Public Affairs
Molly Wasser: Support
Caela Barry: Support
Noah Petro: Support
Katy Mersmann: Support
Jacob Kegerreis: Research Scientist
Aaron E. Lepsch: Technical Support
Universal Production Music: “Black Cloud” and “Magic Trick” by Hugo Dubery [SACEM] and Philippe Galtier [SACEM]; “Connecting Ideas” by Christopher Timothy White [PRS]; “Transitions” by Ben Niblett [PRS] and Jon Cotton [PRS]
This video can be freely shared and downloaded at https://svs.gsfc.nasa.gov/14938. While the video in its entirety can be shared without permission, the music and some individual imagery may have been obtained through permission and may not be excised or remixed in other products. Specific details on such imagery may be found here: https://svs.gsfc.nasa.gov/14938. For more information on NASA’s media guidelines, visit https://www.nasa.gov/nasa-brand-center/images-and-media/.
If you liked this video, subscribe to the NASA Goddard YouTube channel: https://www.youtube.com/NASAGoddard
Follow NASA’s Goddard Space Flight Center
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· Flickr: http://www.flickr.com/photos/gsfc Visualizing NASAs Next Lunar Flyby](https://i.ytimg.com/vi/TseGuyuVWKM/mqdefault.jpg)
