This year is the halfway point in the implementation of the 2030 Agenda for Sustainable Development. A global pandemic, conflicts, disasters and other crises have set back progress towards the ...

Today's students upload content to an AI and present its analysis as their own thinking. Research reveals why this cognitive ...

The Dark Forest theory is one proposed solution to the famed Fermi Paradox, which has bewitched astronomers for more than half a century. To put it concisely, the paradox asks if the cosmos is nearly ...

This contribution is part of the special series of Inaugural Articles by members of the National Academy of Sciences elected in 2014. At the end of the historical declines in both mortality and ...

Ask the publishers to restore access to 500,000+ books. An icon used to represent a menu that can be toggled by interacting with this icon. A line drawing of the Internet Archive headquarters building ...