Final answer:
Data from the Hubble telescope and WMAP suggest that about 75% of the universe is dark energy, supporting the cosmological model that includes dark energy as the main driver for the universe's accelerated expansion.
Step-by-step explanation:
Based on data collected from sources such as the Hubble telescope and The Wilkinson Microwave Anisotropy Probe (WMAP), scientists have concluded that roughly 75% of the universe is composed of dark energy. This information supports the cosmological model that includes a significant amount of dark energy causing the accelerated expansion of the universe.
These findings are in line with predictions from the ΛCDM model (Lambda Cold Dark Matter model or Lambda-CDM model), which estimates about 70% dark energy, 25% dark matter, and 5% ordinary matter. The observations of increasing galactic redshifts suggest that not only is the universe expanding, but it is doing so at an increasing rate, which the presence of dark energy could explain. Moreover, the concept of dark matter forming gravitational traps that allowed the early formation of galaxies further corroborates the model where dark matter and dark energy constitute the bulk of the universe's contents.