Our Latest Posts
Bringing Woolly Mammoths Back from Extinction Might Not be Such a Bad Idea — Ethicists Explain
A US startup has announced plans to bring woolly mammoths, or animals like them, back from extinction and into the frosty landscape of the Siberian tundra. The [...]
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. [...]