“A Mysterious Wave-Like Structure in Our Galaxy Found to Be Slowly Slithering”

Gazing out upon the apparently unchanging sea of stars around us, it’s tempting to think of the Milky Way galaxy as static and everything within it as fixed and immutable.
While the timescales on which our galaxy moves often defy human experience, move it does indeed.
Not all of these dynamic processes are easy to see. Just a few years ago, scientists discovered a huge, wave-shaped structure extending some 9,000 light-years in length snaking along a spiral arm of the Milky Way, just 500 light-years from the Solar System at its closest point.







