4 swimmers dead, 3 missing in N.Y. ocean waters

NEW YORK - Four swimmers drowned and three were missing Saturday in two days of treacherous ocean currents at Long Island and New York City beaches, authorities said. At least three more had been rescued.

Microbes beneath sea floor genetically distinct

Tiny microbes beneath the sea floor, distinct from life on the Earth's surface, may account for one-tenth of the Earth's living biomass, according to an interdisciplinary team of researchers, but many of these minute creatures are living on a geologic timescale.National Science Foundation, NASA Astrobiology, US Department of Energy, Pennsylvania Department of Health