A recent discovery suggests Mars may have once had a much larger moon, which could have caused tides in a lake that once ...

The Moon has always been a steady presence in the night sky, but recent observations are forcing scientists and sky-watchers to look again at what it is quietly enduring. Irish astronomers reported a ...

A tour of the heaviest military machines ever built, from super-heavy tanks and rail guns to record-setting bombers, submarines, battleships, and modern aircraft carriers—each compared to the weight ...

A renewed analysis of radar data from Venus, collected by NASA’s Magellan spacecraft in the early 1990s, has revealed evidence of a large underground cavity formed by ancient lava flows—the first ...

As much as 45 oceans’ worth of hydrogen may be in Earth’s core, scientists reported, suggesting most of Earth’s water was ...

Even when Earth was locked in its most extreme deep freeze, the planet’s climate may not have been as silent and still as once believed. New research from ancient Scottish rocks reveals that during ...

Trillions of neutrinos—nearly massless, neutrally charged particles—pass through us every second, but we only acknowledge ...

A supercharged neutrino that smashed into our planet in 2023 may have been spit out by an exploding primordial black hole ...

Living on a houseboat sounds great in theory but there are some practicalities to be considered. For example, how will you ...

With new technology, smarter tools, and a lot of patient digging, historians and archaeologists are uncovering marvels from every corner of the world. One day it’s an enormous thigh bone from a ...

With new technology, smarter tools, and a lot of patient digging, historians and archaeologists are uncovering marvels from every corner of the world. One day it’s an enormous thigh bone from a ...