A delicate tangle of filaments drifts through the void in this ethereal portrait of Sh2-240, more commonly known as the Spaghetti Nebula. This vast supernova remnant, spanning nearly 150 light-years across, is the ghostly aftermath of a massive star that exploded approximately 40,000 years ago. Situated on the border between the constellations Taurus and Auriga, this faint and expansive structure is one of the largest supernova remnants visible from Earth, though its tenuous tendrils of ionized gas make it a challenge to observe.

Captured in the HOO palette, this image isolates the nebula’s intricate web of filaments using hydrogen-alpha and oxygen-III emissions. The deep red hues trace the remnants of the progenitor star’s outer layers, while the soft cyan glows highlight the presence of oxygen-rich shock waves sweeping through interstellar space. These delicate strands, shaped by the expanding shock front, weave an intricate cosmic tapestry that is slowly dispersing into the surrounding medium.

Despite its ghostly appearance, Sh2-240 continues to shape its environment, compressing nearby gas clouds and potentially triggering the birth of new stars. As this ancient stellar remnant gradually fades into the depths of time, it serves as a reminder of the relentless cycle of stellar death and rebirth that sculpts the universe.