Icon depicting the Emperor Constantine and the fathers of the Council of Nicaea of 325 with the Greek text of the Nicene-Constantinopolitan Creed of 381 in its liturgical form.

There’s no geological artist quite like Earth’s plate tectonics. Thanks to this ongoing operation, we have mountains and oceans, terrifying earthquakes, incandescent volcanic eruptions, and ...

This Harley-Davidson took the world’s first motorcycle ride powered by solar fuel. The bike motored along the shores of Switzerland’s Lake Zurich thanks to a new type of sustainable energy.

Excavations on unpromising mounds in the Iraqi desert revealed Sumer’s earliest city. Surviving relics and a rebuilt temple have given experts more clues about the ancient metropolis of Eridu.

May’s night sky is packed with astronomical events—find out when and where to look for meteor showers, ancient star clusters, and a rare cosmic lineup.

An interstellar meteor may have slammed into Earth. If confirmed, a fireball that careened through our atmosphere in 2014 will be only the second known visitor from beyond our solar system.

NASA sent a map to space to help aliens find Earth. Now it needs an update. The map that NASA launched in 1972 could lead extraterrestrials to Earth.

The laws governing air space and outer space are different; flying a satellite 55 miles above China is just fine if space begins at 50 miles up, but define the edge at 60 miles, and you might find ...

On July 11, Virgin Galactic’s space plane V.S.S. Unity lit its rocket motor and flew to more than 53 miles above Earth’s surface, sending the company’s founder Richard Branson to the edge of ...

And the science behind that process is far from dull. While there’s actually no one way for a brain to rot, it usually involves dying cells and hungry decomposers, not doomscrolling. Typically ...

Research is finally catching up to the idea that meditation—which has been practiced for millennia—also provides many health benefits, including managing stress and anxiety.

From safari ‘star beds’ to the Taj Mahal after hours, after-dark experiences are increasing in popularity with travellers all over the world — here’s why, and what there is to see.