Spacetime With Stuart Gary

SpaceTime Series 27 Episode 124*Galaxies: Bigger Than We Ever ImaginedRecent findings suggest that galaxies are far larger than previously thought, with gaseous halos extending much further into intergalactic space. This study, published in Nature Astronomy, focuses on the circumgalactic medium of a starburst galaxy 270 million light-years away. These halos, accounting for about 70% of a galaxy's mass excluding dark matter, may already be interacting with neighboring galaxies like Andromeda and the Milky Way. The research offers fresh insights into galaxy evolution, gas cycling, and the cosmic web.*Ancient Microbes Found in Billion-Year-Old RocksScientists have discovered living microbes in 2 billion-year-old rocks from South Africa's Bushveld Igneous Complex. This groundbreaking find, published in Microbial Ecology, represents the oldest known living microorganisms. The study utilized advanced imaging techniques to confirm the microbes were native to the ancient rock, offering a glimpse into early life on Ea