The Solar System's passage through the Radcliffe wave during the middle Miocene

As our Solar System orbits the Milky Way, it encounters Galactic environments with varying interstellar densities. The Gaia mission has revolutionized our understanding of the local stellar neighborhood, revealing coherent gas structures such as the Radcliffe Wave and their motion in space. Our research reveals that the Sun's trajectory intersected this Galactic structure in the Orion star-forming region between 11.5 and 18.2 Myr, with the most likely transit around 14 Myr ago, coinciding with a period of Earth's climate reorganization known as the Middle Miocene transition.

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