Many massive stars end their life cycles as black holes. Why do astronomers not believe the sun will end its life cycle as a black hole?(1 point)%0D%0AResponses%0D%0A%0D%0AIt is not at the center of the solar system.%0D%0AIt is not at the center of the solar system.%0D%0A%0D%0AIt is not a binary star.%0D%0AIt is not a binary star.%0D%0A%0D%0AIt is much too hot.%0D%0AIt is much too hot.%0D%0A%0D%0AIt is not massive enough.
The correct answer is: It is not massive enough.
Black holes are formed when massive stars, typically around 20 times the mass of the sun or more, exhaust their nuclear fuel and undergo a supernova explosion. The intense gravitational forces then cause the remaining core to collapse into a black hole.
On the other hand, our sun does not have enough mass to undergo this kind of supernova explosion. Instead, it will follow a different path in its life cycle. The sun is expected to exhaust its nuclear fuel and expand into a red giant during its later stages. Eventually, it will shed its outer layers, leaving behind a dense, glowing core known as a white dwarf.