A star with a ring of planets orbiting around it -- that is the picture we know from our own solar system and from many of the thousands of exoplanets observed in recent years. But now researchers ...

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 young star no more than 300,000 years old is surrounded by a disk of dust and gas rotating in the same manner as planets in our Solar System, making it the youngest such infant system yet found.

An ultra miniature rotating disc optical chopper is introduced by Scitec Instruments Polska. It is intended for oem applications but will also be of interest for compact or low-cost research projects ...