My wife is frugal. So frugal that she’s crashed the self-checkout machine because she used so many coupons that the grocery ...

The surprising affordability of the 15-year-old Lexus CT 200h, a luxury hybrid hatchback that has retained its value and reliability.

The 2026 Toyota Prius is the most fuel-efficient car on sale today. And with available all-wheel drive and a plug-in hybrid option, there’s a Prius to suit most any shopper’s needs.

Here’s what you’ll learn when you read this story: Radioisotope power systems (RPS) keep spacecraft going with nuclear batteries. Until now, RPS operated using a plutonium isotope, but researchers ...