Scientists discover a connection between the development of age-related macular degeneration and the intestinal microbiome
Age-related macular degeneration is the leading cause of blindness in developed countries, but its causes are unknown, and no effective treatment exists.
Ultra-precise dating takes nearly 1,000 years off its age
Gihon Spring, just downhill from the ancient city of Jerusalem, was crucial to the survival of its inhabitants, and archaeologists had uncovered the remains of a massive stone tower built to guard this vital water supply. Based on pottery and other regional findings, the archaeologists had originally assigned it a date of 1,700 BCE.