Global Warming Speeds Earth's Spin, Awaiting North American Solar Eclipse, Milky Way's Spiral Magnetic Field, Alzheimer's Transmission via Donations, and more...

(0:10): Global Warming Speeds Earth's Spin, May Prompt First-Ever Negative Leap Second(2:10): Double Diamond Delight: U.S. Awaits Great North American Solar Eclipse(4:26): Spiral Magnetic Field Unveiled at Milky Way's Heart; Black Hole 'Hiccups' Challenge Cosmic Norms(6:32): Study Suggests Alzheimer's Could Be Transmitted via Bone Marrow Donations(8:44): Study Reveals Older Brain Cells Outlive Younger Ones Post-Trauma: Hope for Neurodegenerative TreatmentsTo subscribe visit https://www.brief.news.For more updates in your inbox each morning visit www.brief.news. Image credit: Forbes