Our Interstellar Medium
Our Milky Way galaxy is home to more than 100 billion stars that are often separated by trillions of miles. The spaces in between, called the interstellar medium, aren't empty –– they're sprinkled with gas and dust that are both the seeds of new stars and the leftover crumbs from stars long dead. Studying the interstellar medium with observatories like NASA’s upcoming Nancy Grace Roman Space Telescope will reveal new insight into the galactic dust recycling system.
Music Credit: Building Heroes by Enrico Cacace [BMI], Universal Production Music
Credit: NASA's Goddard Space Flight Center
Watch this video on the NASA Goddard YouTube channel.
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Credits
Please give credit for this item to:
NASA's Goddard Space Flight Center
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Producer
- Laine Havens (NASA Interns)
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Editor
- Sophia Roberts (eMITS)
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Technical support
- Aaron E. Lepsch (ADNET Systems, Inc.)
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Animator
- Adriana Manrique Gutierrez (eMITS)
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Science writer
- Ashley Balzer (eMITS)
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This page was originally published on Tuesday, September 16, 2025.
This page was last updated on Monday, September 15, 2025 at 8:54 PM EDT.