In the summer of 1908, a blast over remote Siberia flattened trees across an area larger than some countries and lit the sky as far away as Europe. With no crater, no confirmed meteorite fragments and ...

Lake Baikal in Siberia stands as one of Earth’s most astonishing natural wonders. Its staggering depth—reaching over 5,300 feet (1,600 meters)—holds more water than all of North America’s Great Lakes ...