A Mysterious ‘Mini Galaxy’ Found at Solar System’s Edge: NASA Simulations Show Spiral Structure of Oort Cloud

Brief by Shorts91NewsDesk / 12:40pm on 24 Feb 2025,Monday Science

Scientists have discovered that the Oort cloud, a mysterious debris field at the solar system's edge, may resemble a "mini galaxy" with spiral arms. This cloud, located between 2,000 and 5,000 astronomical units away, is believed to be the source of strange comets and meteorites like 'Oumuamua,' the cigar-shaped rock that passed Earth in 2017. Using supercomputer models, researchers from NASA have simulated the gravitational influence of the galactic tide, revealing a spiral structure stretching 15,000 AU. Although this spiral is challenging to detect directly, it provides new insight into the Oort cloud's shape and its connection to the solar system's origin.

Read More at The Independent

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