Milky Way's 300-Light-Year 'Bone' Unveils Galaxy Secrets
Astronomers have identified 'Nessie,' a 300-light-year-long, 1-2 light-years-wide filament of gas and dust in the Milky Way, resembling a slender fibula bone with mass equivalent to 100,000 suns. Presented by Alyssa Goodman of Harvard-Smithsonian, this structure, extended from Spitzer data, traces the Scutum-Centaurus spiral arm, aiding 3D mapping of our galaxy from within.