The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...

The audio version of this article is generated by text-to-speech, a technology based on artificial intelligence. This ancient stellar jewellery box, a globular cluster called NGC 6397, glitters with ...

This book builds on current and emerging research in distance learning, e-learning and blended learning. Specifically, it tests the boundaries of what is known by examining and discussing recent ...

Solving math riddles on the internet might not be on your to-do list, but exams are nearing and math is easily one of the most difficult subjects to master. So, here we are a series of math riddles to ...