Our Latest Posts
The Universe Has Already Made Almost All the Stars It Will Ever Make
In cosmology, Olbers’ paradox asks how a universe loaded with stars can be mostly dark. The answer is that we inhabit a universe that [...]
DNA Has Four Bases. Some Viruses Swap in a Fifth
All life on Earth rests on the same foundation: a four-letter genetic alphabet spelling out a repertoire of three-letter words that specify 20 amino acids. [...]
Ammonia-Refrigerant, Leak Detector & Disinfectant
Ammonia, like methane, water, and carbon dioxide, consists of only 2 different elements. This simple molecule helped give rise to [...]