According to measurements made by the Wilkinson Microwave Anisotropy Probe (WMAP), which material is by far the most plentiful in the universe
Dark matter
neutrinos
dark energy
baryonic matter
According to measurements made by the Wilkinson Microwave Anisotropy Probe (WMAP), baryonic matter is by far the most plentiful material in the universe.
According to measurements made by the Wilkinson Microwave Anisotropy Probe (WMAP), which was launched in 2001 by NASA, the most plentiful material in the universe is dark energy, not dark matter, neutrinos, or baryonic matter. Dark energy is a hypothetical form of energy that is believed to be responsible for the accelerating expansion of the universe. It accounts for about 68% of the total energy density of the universe. Dark matter, on the other hand, is believed to make up about 27% of the universe, while baryonic matter (ordinary matter) is estimated to contribute only about 5% of the total. Neutrinos make up a very small fraction of the overall mass in the universe.
To determine the most plentiful material in the universe according to measurements made by the Wilkinson Microwave Anisotropy Probe (WMAP), you would need to consider the observations and data gathered by the probe. In the case of WMAP, it was primarily focused on studying cosmic microwave background radiation, which provides valuable insights into the composition of the universe.
According to WMAP's measurements and subsequent studies, it is determined that the most plentiful material in the universe is dark matter. Dark matter is a hypothetical form of matter that does not interact with electromagnetic radiation and hence cannot be directly observed. It's called "dark" because it does not emit, absorb, or reflect light, making it invisible to traditional telescopes. However, its existence is inferred by studying its gravitational effects on visible matter and on the large-scale structure of the universe.
To arrive at this conclusion, the WMAP mission analyzed the effects of dark matter on the distribution of cosmic microwave background radiation fluctuations. By comparing these observations with sophisticated computer simulations and theoretical models, scientists estimated that dark matter constitutes about 26.8% of the total mass-energy content of the universe.
While dark matter is the most plentiful material, it is important to note that dark energy is believed to dominate the overall energy density of the universe. Dark energy is another hypothetical component that drives the accelerating expansion of the universe, but its exact nature is still a subject of active research and investigation.
In summary, according to WMAP measurements, dark matter is considered to be the most plentiful material in the universe, making up a significant fraction of its total mass-energy content.