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  1. Six-million-year-old Antarctic ice offers glimpse into warmer era of ...

    16 hours ago · A team of scientists from several U.S. institutions, including the University of Minnesota, discovered six million year old ice in Antarctica — the oldest dated ice on the planet.

  2. Scientists Drill 1.7 Miles Into Antarctic Ice, Revealing 1.2 Million ...

    Jan 10, 2025 · Scientists have drilled 1.7 miles deep into Antarctica, pulling up an ice core sample that dates back at least 1.2 million years. They expect the sample to offer new insights into the …

  3. Unique ice, 1.5m years old, to be melted to unlock mystery - BBC

    Jul 18, 2025 · On a worktop next to stacked boxes of ice, Dr Thomas points out the oldest cores that could be 1.5 million years old. They shine and are so clear we can see our hands through …

  4. When scientists reconstruct ancient climates from ice cores, how …

    Oct 9, 2025 · Despite the challenges, ice cores are incredibly rich sources of information about our planet’s past. And they’ve proven their reliability, McGee says, as researchers compare them to …

  5. Antarctica’s Secrets: What Ancient Ice Cores Reveal

    Aug 22, 2025 · Ice cores—cylindrical samples drilled from deep within Antarctica’s ice sheets—are windows into a world long gone. Trapped within them are air bubbles, tiny pockets of ancient …

  6. Core questions: An introduction to ice cores - Science@NASA

    Aug 14, 2017 · The samples they collect from the ice, called ice cores, hold a record of what our planet was like hundreds of thousands of years ago. But where do ice cores come from, and …

  7. What Ancient Ice Cores Reveal About Earth’s True Climate Past

    Aug 2, 2025 · Ancient ice cores help scientists estimate how much polar ice melted in the past and how sea levels responded. By comparing stable isotopes in the ice, researchers can …

  8. The race to save secrets trapped in ice - National Geographic

    Nov 21, 2025 · The race to save secrets trapped in ice Can the ancient information locked away in the polar ice sheets be found before it all melts?

  9. Oldest ice cores yet hide climate clues - ScienceDirect

    Apr 26, 2025 · Separate teams from Australia, Europe, Japan and the US have all begun drilling ice cores that could hold the answer to this puzzle, while South Korean researchers and a Russian …

  10. Ancient Ice Core Could Unlock Secrets of Earth's History

    Jan 13, 2025 · CNN reported that the remarkable ice core is believed to be at least 1.2 million years old, making it one of the oldest samples ever collected. Ice cores act as time capsules, …