in 1998, scientists discovered that the expansion of the universe has been accelerating. what force is…

in 1998, scientists discovered that the expansion of the universe has been accelerating. what force is causing this phenomena?\n- dark energy\n- hubbles law\n- the doppler effect\n- background radiation

in 1998, scientists discovered that the expansion of the universe has been accelerating. what force is causing this phenomena?\n- dark energy\n- hubbles law\n- the doppler effect\n- background radiation

Answer

Brief Explanations:

Dark energy is a hypothetical form of energy that is thought to be responsible for the accelerating expansion of the universe. Hubble's law describes the relationship between the distance of galaxies and their recessional velocity. The Doppler effect is about the change in frequency of waves due to relative motion. Background radiation is leftover radiation from the early universe.

Answer:

dark energy