Hubble spots an expanding newborn jet in the Trifid Nebula on its 36th anniversary
Hubble re-imaged the Trifid Nebula (Messier 20) about 5,000 light-years away in Sagittarius for its 36th anniversary, revealing an active jet (HH-399) from a young star that has expanded since the 1997 image, offering clues to jet speeds and the energy young stars inject into their surroundings, alongside ultraviolet-lit gas and cleared dust around newly formed stars.