Ancient Atmospheric Oxygen Sleuthing with Ocean Chromium
Found in jewelry, car parts, pigments, and industrial chemical reactions, the metal chromium and its compounds are often employed for their color, finish, and anti-corrosive and catalytic properties. Currently, geoscientists and paleoceanographers from MIT and the Woods Hole Oceanographic Institution (WHOI) are looking to add another use to that list: as a way to examine chemical shifts in ancient Earth’s oceans and atmosphere that are preserved in the seafloor’s paleorecord.
Researchers Detect Cold Gas Pipelines Feeding Early, Massive Galaxies
To come into being, galaxies require cold gas to undergo gravitational collapse. The larger the galaxy, the more cold gas it needs to coalesce and to grow.