big+bang+theory

1) About how long ago did the big bang take place?According to the standard theory, our universe sprang into existence as "singularity" around 13.7 billion years ago.

2) What is a black hole?A **black hole** is a region of spacetime from which nothing, not even light can escape

3) Does the universe continue to expand?According to he Big Bang model, the universe expanded from an extremely dense and hot state and continues to expand today.

4) Was there really a big bang?Some expert say that there was no explosion but other said there is

5) What light elements seem to support the Big Bang Theory? The term nucleosynthesis refers to the formation of heavier elements, atomic nuclei with many protons and neutrons, from the fusion of lighter elements. :)