The elements in the periodic table are arranged according to the transition from metal to nonmetal elements.
An extraordinary galactic jet ejected from a supermassive black hole boasts a corkscrew-like helical structure, new ground-based telescope views reveal.
Climate change warnings are everywhere today, with an overwhelming scientific consensus that humans are the cause. But when were people first warned about climate change?
Huntsman spiders are long-legged predators that hunt down their prey. Giant huntsman spiders are one of the world's biggest spiders.