Stardust Trapped in Antarctic Ice Reveals Earth's Journey Through the Cosmos

Scientists found iron-60 in Antarctic ice cores at above-background levels, dated to about 40,000–81,000 years ago.

The isotope most likely came from supernova debris in interstellar space, not from Earth-based sources.

The result offers rare evidence that the Solar System passed through interstellar dust in the recent geological past.

It also helps scientists reconstruct the cosmic environment Earth has encountered while moving through the Milky Way.