17/06/2025

The mother of all meteor showers could threaten satellites

Shortly after astronomers detected asteroid 2024 YR4 on December 27, 2024, they realized it posed no threat to Earth. But it could still impact the moon in 2032. The impact debris could threaten satellites and trigger an ...

The Inca string code that reveals Peru's climate history

Five centuries ago, the Incas ruled the western half of South America with the help of a unique form of writing based on colored and knotted cords. These strings, called khipus, recorded major events, tracked economic matters, ...

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