What events led to the birth of the sun?

Answer 1

the big bang

Members of a research team led by the University of Colorado at Boulder have used NASA's Chandra X-ray Observatory to peer at the embryo of an infant star in the nearby Eagle Nebula, which they believe may someday develop into a virtual twin of Earth's Sun. The object, known as an evaporating gas globule, or EGG, has the same mass as the Sun and appears to be evolving in a violent environment much like the one believed to have produced Earth's Sun, said researcher Jeffrey Linsky of JILA, a joint institute of CU-Boulder and the National Institute of Standards and Technology. Located in a region called the Pillars of Creation in the Eagle Nebula roughly 7,000 light-years from Earth, the object -- dubbed E42 -- is thought to be in the earliest stage astronomers have ever detected a star like the Sun, said Linsky.

Main reason:

From studies of other stars which astronomers can see in many different stages of their 'life cycle', it seems pretty convincing from the data that the sun must have started out as a large collapsing cloud of gas inside some ancient interstellar cloud. This cloud was 'polluted' by a supernova several million years before the collapse phase ended, because we see certain isotopes of aluminum which could not have been a part of this cloud for very long unless they had been implanted by such an event.

Answer 2

the big bang

Members of a research team led by the University of Colorado at Boulder have used NASA's Chandra X-ray Observatory to peer at the embryo of an infant star in the nearby Eagle Nebula, which they believe may someday develop into a virtual twin of Earth's Sun. The object, known as an evaporating gas globule, or EGG, has the same mass as the Sun and appears to be evolving in a violent environment much like the one believed to have produced Earth's Sun, said researcher Jeffrey Linsky of JILA, a joint institute of CU-Boulder and the National Institute of Standards and Technology. Located in a region called the Pillars of Creation in the Eagle Nebula roughly 7,000 light-years from Earth, the object -- dubbed E42 -- is thought to be in the earliest stage astronomers have ever detected a star like the Sun, said Linsky.

Main reason:

From studies of other stars which astronomers can see in many different stages of their 'life cycle', it seems pretty convincing from the data that the sun must have started out as a large collapsing cloud of gas inside some ancient interstellar cloud. This cloud was 'polluted' by a supernova several million years before the collapse phase ended, because we see certain isotopes of aluminum which could not have been a part of this cloud for very long unless they had been implanted by such an event.

Answer 3

the big bang

Members of a research team led by the University of Colorado at Boulder have used NASA's Chandra X-ray Observatory to peer at the embryo of an infant star in the nearby Eagle Nebula, which they believe may someday develop into a virtual twin of Earth's Sun. The object, known as an evaporating gas globule, or EGG, has the same mass as the Sun and appears to be evolving in a violent environment much like the one believed to have produced Earth's Sun, said researcher Jeffrey Linsky of JILA, a joint institute of CU-Boulder and the National Institute of Standards and Technology. Located in a region called the Pillars of Creation in the Eagle Nebula roughly 7,000 light-years from Earth, the object -- dubbed E42 -- is thought to be in the earliest stage astronomers have ever detected a star like the Sun, said Linsky.

Main reason:

From studies of other stars which astronomers can see in many different stages of their 'life cycle', it seems pretty convincing from the data that the sun must have started out as a large collapsing cloud of gas inside some ancient interstellar cloud. This cloud was 'polluted' by a supernova several million years before the collapse phase ended, because we see certain isotopes of aluminum which could not have been a part of this cloud for very long unless they had been implanted by such an event.

Answer 4

It was either the death of another star, or a nearby supernova caused the clouds to condense.