ESA’s Rosetta spacecraft has made the first in situ detection of oxygen molecules outgassing from a comet, a surprising observation that suggests they were incorporated into the comet during its ...

As a recent leap in green chemistry, scientists have unveiled a new catalyst that enables high yields of sulfones using molecular oxygen -- at close to room temperature. By fine-tuning the structure ...

Researchers headed by a team at Massachusetts General Hospital have, for the first time, shown that reduced oxygen intake, or “oxygen restriction,” is associated with longer lifespan, and reduced ...