21. At the moment it looks like an astrophysical fudging like the cosmological constant . 22. The results have sent Einstein's old cosmological constant to the forefront of cosmology. 23. It is this phenomenon that is measured by the " cosmological constant ." 24. He introduced an additional term in his equations, the cosmological constant , usually labeled lambda. 25. I doubt very much we will find a nonanthropic explanation for the cosmological constant . 26. Their list of suspects begins with Einstein's cosmological constant , but therein lies a problem. 27. The situation changes somewhat with the introduction of dark energy or a cosmological constant . 28. This so-called vacuum energy could repel, just like Einstein's old cosmological constant , or attract. 29. If the universe were perfectly supersymmetric, the cosmological constant would become canceled out entirely. 30. "The cosmological constant is the benchmark oomph, " he said.