Brazilian Journal of Physics
On-line version ISSN 1678-4448
The return of the cosmological constant A to explain the accelerated stage of the universe has brought back many puzzles and misteries surrounding this constant. These enigmas touch upon the scales set by Λ, the cosmological aspect, the astrophysical effects of Λ and its role in quantum gravity. We will briefly discuss all these aspects putting the emphasis on issues not commonly known.
Keywords : Cosmological Constant; Astrophysics; Black body radiation.