For decades, the internationally accepted answer has been the Kármán Line, hovering at 100 kilometers (or 62 miles) above sea ...

Earth Day has its roots in growing concern over pollution in the 1960s, when author Rachel Carson's 1962 book “Silent Spring,” about the pesticide DDT and its damaging effects on the food chain, hit ...

Celebrate Earth Day 2025 by spreading environmental awareness with these 50 inspiring wishes, messages, images, and quotes.

Google is celebrating Earth Day 2025 with a stunning and thought-provoking Doodle that features breathtaking aerial images of ...

Katy Perry and Gayle King are among the famous passengers taking a rocket-powered joyride Monday. But determining the point at which the star-studded crew reaches space isn’t as straightforward as it ...

In this type of fault, the block of rock above the fault plane, known as the hanging wall, moves downward relative to the block below, called the footwall. Normal faults are typically found at ...