The Earth s liquid molten outer core, composed mostly of iron and nickel, exerts an electromagnetic field extending from the north and south pole that protects the planet from harmful solar particle radiation.
Four University of Michigan faculty members have been selected to join the American Academy of Arts and Sciences for their significant contributions in scholarly and professional fields.
For these Society alumni, Earth Day is every day! - Society for Science societyforscience.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from societyforscience.org Daily Mail and Mail on Sunday newspapers.
The expanded to-do list is one source of added holiday stress, but perhaps even more pernicious is the unspoken expectation of how we’re supposed to feel during the holidays happy, grateful, connected.