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Astronomy Picture of the Day

Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2025 April 9

Explanation: What's at the tip of this interstellar jet? First let's consider the jet: it is being expelled by a just forming and is cataloged as 49 (HH 49). The expelling this jet is -- it is off to the lower right. The complex conical structure in this infrared image by the also includes another jet cataloged as HH 50. The fast jet particles impact the interstellar gas and form shock waves that glow prominently in light -- shown here as reddish-brown ridges. This also resolved the mystery of the unusual object at 's tip: it is a far in the distance. The blue center is therefore not one star but many, and the surrounding circular rings are actually s.

Authors & editors: () & ()
NASA Official: Amber Straughn .
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