For the first time, researchers have determined how a human olfactory receptor captures an airborne scent molecule, the pivotal chemical event that triggers our sense of smell. Whether it evokes roses ...

Of the five human senses, AI is already able to mimic sight and hearing. And one company wants to use the technology to digitize another: smell. Alex Wiltschko is the CEO and co-founder of Osmo, a ...

When Thomas Hummel gets a whiff of an unripe, green tomato, he finds himself in his childhood home in Bavaria. Under the tilted ceilings of the bedroom that he shared with his two older brothers, ...

Thioacetone is a chemical whose smell is so bad, it's almost impossible to believe. Weirdly, it was created from a chemical that you can find in candy. But it opens up questions about how smell works ...