Classical and Quantum Gravity. Cosmological Parameters". A better understanding of dark energy is likely to solve the problem of the ultimate fate of the universe.

Friday Giant 3: The outposts also included the legendary Daisy Red Ryder Carbine, which became a father-to-son Christmas gift tradition as memorialized in the Jean Shepherd film A Christmas Story. At first, the expansion is slowed down by gravitation attracting the radiation and matter in the universe.

During the earliest moments of the universe the average energy density was very high, making knowledge of particle physics critical to understanding this environment. Alexandra on May 3, at 9: This box: