SpaceDust from asteroid mining spells danger for satellites Both NASA and private firms want to drag resource-rich asteroids closer to home to mine them, but that could stir up dust that could collide with satellites ¿ìè¶ÌÊÓÆµ
LifeMixed Messages: Are our genes and culture at cross purposes? Why privilege genes over culture when people like South America's Mbaya, who eschew sex and pass on their culture through adoption, seem to argue the opposite? CultureLab