It seems that the dark energy, the mysterious force that expands the universe, weakens over time, according to a major cosmic survey that threw the laws of modern physics in doubt. Ian Madeleine Vinlai tells how this new discovery can shed light on the final fate of the universe, and SAUL Perlmter, who won the Nobel Prize for his work that proves that the universe is expanding, describes how new development can increase assumptions on how this mysterious power works
