In situ research of cometary chemistry began when measurements from the Giotto mission at
Comet 1P/Halley revealed the presence of complex organics in the coma. New telescopes …

To date, 204 individual molecular species, comprised of 16 different elements, have been
detected in the interstellar and circumstellar medium by astronomical observations. These …

The importance of comets for the origin of life on Earth has been advocated for many
decades. Amino acids are key ingredients in chemistry, leading to life as we know it. Many …

To date, 241 individual molecular species, composed of 19 different elements, have been
detected in the interstellar and circumstellar medium by astronomical observations. These …

Biochemistry on Earth makes use of the key elements carbon, hydrogen, oxygen, nitrogen,
phosphorus, and sulfur (or CHONPS). Chemically accessible molecules containing these …

We report the first detection of the phosphorus monoxide ion (PO+) in the interstellar
medium. Our unbiased and very sensitive spectral survey toward the G+ 0.693–0.027 …

Chemical equilibrium has proven extremely useful for predicting the chemical composition of
AGB atmospheres. Here we use a recently developed code and an updated thermochemical …

To understand how phosphorus (P)-bearing molecules are formed in star-forming regions,
we have analysed the Atacama Large Millimeter/Submillimeter Array (ALMA) observations …

The carbon-star envelope IRC+ 10216 harbors a rich variety of molecules, with more than
80 detected to date. During the course of a λ 3 mm survey of IRC+ 10216 carried out with the …

Phosphine (PH 3) was tentatively identified a few years ago in the carbon star envelopes
IRC+ 10216 and CRL 2688 from observations of an emission line at 266.9 GHz attributable …