The South Atlantic Anomaly is a weak spot in the Earth's magnetic field. Scientists say it has expanded and shifted over the past couple of years. This can have a devastating effect on man-made objects in space, and also on the astronauts.

Earth's magnetic 'hole' is expanding and shifting. Should we be worried?

Earth’s magnetic field protects life, powers navigation, and shields us from solar radiation. If it weakens or vanishes, we could face GPS failures, crop loss, disrupted migration, and increased cancer risk. Here’s how this hidden force affects daily life and what could go wrong.

How our modern life depends on Earth’s magnetic field: What would happen if it disappeared?

For several years, this unusual feature in Earth's magnetic field, referred to by NASA as a "dent," has been a source of scientific curiosity and investigation.

NASA monitors mysterious weakening in Earth's magnetic field

Growing dent on Earth’s magnetic field can damage satellites and navigation