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.
While there are many amazing waterfalls around the globe, listed below are five of the worldâs biggest and best waterfalls that stand-out from the rest in terms of height, volume or sheer beauty: Situated in Ontario, Canada and New York, USA, Niagara Falls is undoubtedly the worldâs most famous waterfall. At 51 metres in height, it is certainly not the tallest. However, this magnificent waterfall has an average flow rate of 1,834 cubic metres per second.