Introduction]The "snowflake" that drifts down softly from the winter sky.When you look through a microscope, a breatht ...

Nature forced Washingtonians to contemplate winter earlier than most would have liked this year, as a rare October storm dropped as much as six inches of snow around the region. The early snow was a ...

Kenneth Libbrecht is that rare person who, in the middle of winter, gleefully leaves Southern California for a place like Fairbanks, Alaska, where wintertime temperatures rarely rise above freezing.