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APOD

Astronomy Picture of the Day

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

A starfield is shown with a large spherical nebula in the center. The nebula shows a great deal of internal structure. Please see the explanation for more detailed information.

Wolf-Rayet Star 124: Stellar Wind Machine

Explanation: Some stars explode in slow motion. Rare, massive Wolf-Rayet stars are so tumultuous and hot that they are slowly disintegrating right before our telescopes. Glowing gas globs each typically over 30 times more massive than the Earth are being expelled by violent stellar winds . Wolf-Rayet star WR 124 , visible near the featured image center, is thus creating the surrounding nebula known as M1-67 , which spans six light years across. Details of why this star has been slowly blowing itself apart over the past 20,000 years remains a topic of research. WR 124 lies 15,000 light-years away towards the constellation of the Arrow ( Sagitta ). The fate of any given Wolf-Rayet star likely depends on how massive it is, but many are thought to end their lives with spectacular explosions such as supernovas or gamma-ray bursts .

Explore Your Universe: Random APOD Generator

Date February 3, 2025
Credit Image Credit: Hubble Legacy Archive , NASA , ESA ; Processing & License: Judy Schmidt
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.