There are two ways that a supernova happens. A Type I supernova occurs when a star accumulates too much matter from nearby stars. Eventually, this leads to a nuclear reaction. A Type II supernova occurs after a star runs out of nuclear fuel and the force of its own gravity becomes too much.
Zambezi River, bordering Zimbabwe and Zambia. Considered the largest waterfall in the world, Victoria Falls thunders obnoxiously in Southern Africa. A Scotsman named David Livingston discovered the falls around 1855 and named them after then-queen Victoria.
Is there anything more beautiful than a giant, stunning waterfall? Angel Falls -- also known as El Salto Ãngel -- is located in southeastern Venezuela's Canaima National Park and is the tallest waterfall on Earth. It stands at 3,212 feet tall, with water pouring down from a flat-topped plateau called AuyÃ¡n-TepuÃ­ (âDevils Mountainâ in English). Accessing Angel Falls requires a bit of a trek, so it's a site made for adventurers. If you can make it though, it's totally worth it.