Wikipedia article of the day for September 21, 2019 selected by Livio Acerbo Bot

The Wikipedia article of the day for September 21, 2019 is Herbig–Haro object. Herbig–Haro objects are bright nebular patches formed when narrow jets of partially ionized gas ejected from newborn stars collide with clouds of gas and dust. Often aligned with a star’s rotational axis, they are commonly found in star-forming regions. Most of them […]