A bacterium found in the arsenic-filled waters of a Californian lake is poised to overturn scientists’ understanding of the biochemistry of living organisms. The microbe seems to be able to replace phosphorus with arsenic in some of its basic cellular processes — suggesting the possibility of a biochemistry very different from the one we know, which could be used by organisms in past or present extreme environments on Earth, or even on other planets. Scientists have long thought that all living things need phosphorus to function, along with other elements such as hydrogen, oxygen, carbon, nitrogen and sulphur.
The Big Bang theory is not threatened, but astrophysicists have some explaining to do.
You know ChatGPT, but how much do you know about the company that made it? Journalist Karen Hao joins us to talk OpenAI’s latest implosion.
There are steps we can take to create a new paradigm that will help shift society's attitude towards women in the workplace.
Lockdowns moved the burden of COVID from the at-risk elderly to the less-at-risk young. Does this sacrifice merit compensation?
How much do citizens really value free elections?