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Network of fortified towns indicates Amazon was once heavily populated

How Shyp Sunk: The Rise and Fall of an On-Demand Startup

Social Inequality Leaves a Genetic Mark

In humans, the profound biological differences that exist between the sexes mean that a single male is physically capable of having far more children than is a single female. Women carry unborn children for nine months and often nurse them for several years prior to having additional children. Men, meanwhile, are able to procreate while investing far less time in the bearing and early rearing of each child.

Need to make a molecule? Ask this AI for instructions

China Is Building a Rain-Making System Three Times as Big as Spain

Galaxy seems to lack dark matter, stumping astronomers

Dark matter and galaxies normally go hand in hand. Dark matter seems to be needed to draw in sufficient material to form the galaxy and its stars, and halos of dark matter keep galaxies from spinning apart as they rotate. So scientists were more than a bit surprised to find a galaxy that has little to no dark matter at all.

Astronomers Can’t Explain Why This New Galaxy Has Hardly Any Dark Matter

FCC says it will block Chinese technology to protect national security

These Geometric Shapes Were Made By a Previously Unknown Civilization

Arizona governor and Uber kept self-driving program secret, emails reveal