Getting people to eat well and exercise is the biggest unsolved problem in health care.
Better technology and high battery costs have revived interest in hydrogen-guzzling vehicles.
The website for the Affordable Care Act was doomed by an inordinately complex setup that tried to link disparate databases in real time.
The U.S. will still need more big breakthroughs to eliminate the need for imported oil.
Manufacturing, transporting, and constructing the world’s largest wind turbine represents a unique challenge.
Transatomic is developing a new kind of molten-salt reactor designed to overcome the major barriers to nuclear power.
Chemical producers abandoned the U.S. in droves. Cheap natural gas is luring them back.