Present day oil analysis is done by using optical emission spectroscopy (OES) to measure the ppm (parts per million) levels of wear metals, contaminants and additives in oil samples. This paper ...

A massive, rotating disk galaxy from the early universe has been discovered by an international team of astronomers. Galaxy DLA0817g, dubbed the "Wolfe Disk" after the late astronomer Arthur M. Wolfe, ...

The famous rotating ice disk formed on the Presumpscot River in Maine, in the same spot it formed back in 2019.While this one is not currently the size of the former, it could continue to grow. The ...

Current models of massive galaxy formation suggest that they evolve as part of a slow growth process, gradually increasing in size through mergers with smaller galaxies and the accumulation of clumps ...