The inner solar system spins much slower than it should

The inner solar system spins much slower than it should

The inner solar system spins much slower than the laws of modern physics predict, and a new study could help explain why.

A thin disk of gas and dust, known as the accretion disk, spirals around young stars. These disks, where planets form, contain remnants of star-forming material that is a fraction of the star’s mass. According to the law of conservation of angular momentum, the inner part of the disc should spin faster as the material spins slowly inward toward the star, similar to how figure skaters spin faster as they bring their arms closer to their body.

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