Astronomers discover end-dominated collapse and hub-filament system in G53 star-forming region

Meng Dezhao, a Ph.D. student from the Xinjiang Astronomical Observatory of the Chinese Academy of Sciences, together with his ...
Investopedia

Operating Profit: How to Calculate, What It Tells You, and Example

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. David Kindness is a Certified Public ...