Sedimentary rocks created more than 2.4 billion years ago sometimes have an unusual sulfur isotope composition thought to be caused by the action of ultra violet light on volcanically produced sulfur ...

Ancient sediments that once resided on a lake bed and the ocean floor show sulfur isotope ratios unlike those found in other samples from the same time, calling into question accepted ideas about when ...

Oxygenated VOCs with low and/or extremely low vapor pressures are particularly significant to the climate. They are essential in generating atmospheric aerosols by condensing onto pre-existing aerosol ...

When astronauts Gene Cernan and Harrison Schmitt returned from NASA’s Apollo 17 mission in 1972, they carried with them a ...

The isotopic ratio of sulfur-33 on the moon differs from that of Earth. Did the moon's sulfur instead come from the impactor ...

Sealed Apollo 17 samples analyzed with new techniques reveal that the Moon’s interior contains sulfur isotopes unlike those ...