'Eau de comet' is a bit of a stinker

Rotten eggs, horse pee, alcohol and bitter almonds: this is the bouquet of odours you would smell if a comet in deep space could be brought back to Earth, European scientists said on Thursday.

Chemists moving forward with tool to detect hydrogen sulfide

University of Oregon chemists have developed a selective probe that detects hydrogen sulfide (H2S) levels as low as 190 nanomolar (10 parts per billion) in biological samples. They say the technique could serve as a new tool ...

Feast clue to smell of ancient Earth

Tiny 1,900 million-year-old fossils from rocks around Lake Superior, Canada, give the first ever snapshot of organisms eating each other and suggest what the ancient Earth would have smelled like.

French 'rotten egg' stench invades England (Update 2)

The stench of rotten eggs wafted across Paris and northern France on Tuesday, even reaching across the sea to England, after a gas leak that authorities said was very smelly but entirely harmless.

How cells in the nose detect odors

The human nose has millions of olfactory neurons grouped into hundreds of different neuron types. Each of these neuron types expresses only one odorant receptor, and all neurons expressing the same odorant receptor plug into ...

Team observes rapid change in underwater volcano Monowai

(Phys.org) -- A research team out to perform routine mapping of the seafloor some 400 kilometers southwest of Tonga, found that one volcano, named Monowai, changed dramatically over just a two week time span. In an apparent ...

Anti-inflammatory effect of 'rotten eggs' gas

Researchers from the Peninsula Medical School in Exeter have synthesized a new molecule which releases hydrogen sulfide (H2S) - the gas that gives rotten eggs their characteristic smell and which has recently been found to ...