00:00Antarctic ice is revealing clues about an ancient cosmic journey.
00:03Scientists have discovered radioactive iron-60 trapped in Antarctic snow and ice.
00:09This rare isotope is linked to dust produced by exploding stars, known as supernovae.
00:15The research focused on a 300-kilogram section of Antarctic ice.
00:19That ice dates back between 40,000 and 80,000 years.
00:23Researchers found less iron-60 than they expected during that period.
00:26The finding suggests less interstellar dust was reaching Earth at the time.
00:31Scientists believe the solar system may have been moving through changing clouds of material between the stars.
00:37Our galaxy contains roughly 15 nearby interstellar clouds.
00:41The solar system is currently moving through one of them, called the Local Interstellar Cloud.
00:46Researchers say these clouds may have connections to ancient stellar explosions.
00:50The Antarctic ice acts like a natural archive, preserving material from Earth's cosmic neighborhood.
00:56Scientists now hope deeper and older ice could reveal more.
01:00Future research may help reconstruct how the solar system moved through these mysterious interstellar clouds.
01:06Disclosure.
01:07This video contains stock footage and content created or enhanced using AI-assisted tools.
01:11This video contains only an outdoor landscape.
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01:11Um, there's only a question that Brian is related to U.S..
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