Stratospheric aerosol research divides scientists between urgent climate intervention and unpredictable planetary risk.

South Korea's smart city reports 180,000 autonomous trips with zero at-fault collisions over 12 months.

A decade-long study finds modest reductions in cardiovascular events among prediabetic adults — fueling longevity investment.

The mission could validate economics of in-space resource extraction — or prove it remains decades away.

Three additional paralyzed patients control cursors and messaging apps through implanted electrodes.