Federal rules that took effect in 2025 quietly rewired how new home air conditioners and heat pumps are built, yet many ...

As the White House confirms military force is "always an option," experts say the costs—financial, strategic, and ...

Humans respond to environments that change at many different speeds. A video game player, for example, reacts to on-screen ...

Will the US spring forward clocks for daylight savings time in 2026? President Trump wants to stop changing clocks, Congress ...

A rapid climate collapse during the Late Ordovician Mass Extinction devastated ocean life and reshuffled Earth’s ecosystems.

Earthquakes happen daily, sometimes with devastating consequences, yet predicting them remains out of reach. What scientists ...

Our universe plays by certain rules, which originate from different branches of physics. But sometimes the rules seem ...

Net change measures a security's price difference from one day to the next. Learn its role in stock analysis, how it's used ...

Transitions can stir big feelings in young children, even when nothing is “wrong.” Steady, emotionally present caregiving ...