The Big Bang is not something that is currently burning or ongoing. The term "Big Bang" refers to the prevailing scientific theory about the origins of the universe. According to this theory, the universe began in an extremely hot and dense state about 13.8 billion years ago and has been expanding and evolving ever since.
The concept of the Big Bang does not involve a literal fire or burning. It describes the rapid expansion and cooling of the universe from an incredibly hot and dense initial state. As the universe expanded, matter and energy spread out, and the universe gradually cooled down.
The future of the universe, according to current scientific understanding, depends on various factors such as the amount of matter and dark energy in the universe. There are several possible scenarios, including continued expansion, a "Big Freeze" where the universe expands and cools indefinitely, a "Big Crunch" where the expansion reverses and the universe collapses back in on itself, or even a "Big Rip" where the expansion accelerates to the point of tearing apart matter and structure in the universe.
It's important to note that the ultimate fate of the universe is an active area of scientific research and remains a subject of ongoing investigation and debate among cosmologists.