Rodney Brooks, famous for the Roomba, argues the humanoid robot craze in Silicon Valley is doomed to fail.

© Aaron Wojack for The New York Times

Beijing is pouring vast resources into fusion research, while the U.S. wants private industry to lead the way. The winner could reshape civilization.

Beijing is pouring vast resources into fusion research, while the U.S. wants private industry to lead the way. The winner could reshape civilization.

Researchers found a chasm between the health reasons for which the public seeks out cannabis and what gold-standard science actually shows about its effectiveness.

© Mohamed Sadek for The New York Times

Apocalyptic predictions may actually serve as comforting fantasies, at which point our future freakouts become an excuse for inaction.

As some lawmakers press U.S. universities to curtail ties with China, a postdoctoral student’s prosecution raises questions about how big the danger actually is.

Although some Silicon Valley executives paint China as the enemy, Chinese brains continue to play a major role in U.S. research.

But there are signs that greenhouse gas pollution in China might be slowing, according to a new analysis.

At an international conference, researchers at the forefront of animal-human transplantation compared notes and allowed themselves the first real optimism in decades.

Longevity labs, “immortality islands” and grapeseed pills are part of China’s national project to conquer aging, despite sometimes shaky science and extravagant claims.

China’s new national drive to embrace artificial intelligence is also giving the authorities new ways to monitor and control its citizens.