In this search for the origin of one of the world’s most common genetic diseases, emerging research in evolutionary medicine raises new questions about our history, development, and future as a species.
Astronomers have measured the background light from all the stars in the cosmos and inferred the number of stars created since the dawn of the universe, Using observations from NASA’s Fermi Gamma-ray Space Telescope, scientists discovered emissions from distant blazars – gamma ray-emitting supermassive black holes at the centers of galaxies. As matter falls into…
Animals can focus their sense of smell in much the same way as humans focus their eyes, helping them detect predators and search out food. Researchers at the University of Chicago found that rats adjust their sense of smell through sniffing techniques that bring scents to receptors in different parts of the nose. The sniffing…
A review of John A. Jungerman’s “World in Process: Creativity and Interconnection in the New Physics.”
As galaxies go, our Milky Way is pretty quiet. Active galaxies have cores that glow brightly, powered by supermassive black holes swallowing material, and often spit twin jets in opposite directions. In contrast, the Milky Way’s center shows little activity. But it wasn’t always so peaceful. New evidence of ghostly gamma-ray beams suggests that the…
In a new study from the Proceedings of the National Academy of Sciences, mouse brain cells implanted into rats survived as long as the rats did, double the average mouse lifespan. This runs contrary to one theory of aging that holds that our life spans are genetically determined, and cells in our body will die…
An iceberg twice the size of Manhattan tore off one of Greenland’s largest glaciers. For several years, scientists had been watching a long crack in the floating ice shelf of the northerly Petermann Glacier. Now, NASA satellites show it has broken completely, forming an iceberg covering 46 square miles. The same glacier spawned an iceberg…