According to measurements made by the Wilkinson microwave anisotropy probe wmap which materisl is by far the most plentiful in the universe

Answer 1

According to measurements made by the Wilkinson Microwave Anisotropy Probe (WMAP), the most plentiful material in the universe is dark energy. Dark energy is a theoretical form of energy that is thought to make up about 69% of the total energy density of the universe. It is hypothesized to be responsible for the observed accelerated expansion of the universe. Dark matter is also believed to be another major constituent of the universe, accounting for about 26% of the total energy density. Ordinary matter, which includes atoms and everything we can see, makes up only about 5% of the total energy density of the universe.