TNRTB Archive - Retained for reference information
Using the recently installed Advanced Camera for Surveys on the Hubble Space Telescope astronomers have discovered two more distant type Ia supernovae. These supernovae confirm that the universe’s expansion velocity transitioned from decelerating to accelerating six to seven billion years ago which strengthen the evidence for exquisite fine-tuning in the cosmic density parameters.
John P. Blakeslee, et al, “Discovery of Two Distant Type Ia Supernovae in the Hubble Deep Field-North with the Advanced Camera for Surveys,” Astrophysical Journal, 589 (2003), pp. 693-703.
RTB book: The Creator and the Cosmos, third edition