物語り・その１ The story – Part 1
The universe originated in the Big Bang, a momentous event accompanied, according to inflationary theory, by an unprecedented expansion over an extraordinarily brief interval. Of the total contents of the universe, the ordinary matter that we can directly perceive accounts for only about 5 percent. Approximately 27 percent consists of the mysterious dark matter, while the remaining 68 percent is dark energy, whose nature remains largely unknown. It is this dark energy that is thought to be driving the accelerated expansion of the universe.
