Science & Tech · Space · 1 day ago

New Images Reveal Gas Knots and a Possible Survivor in Supernova Remnant

New Images Reveal Gas Knots and a Possible Survivor in Supernova Remnant

Astronomers have captured the clearest image yet of Pa 30, a nebula about 7,500 light-years from Earth.

They believe it is the remnant of a supernova that people saw in 1181 and recorded in historical accounts.

Observations with the Gemini North telescope in Hawaii revealed about 10 times more detail than earlier images.

The nebula’s streaks are made of gas knots that look like beads on strings, though scientists do not yet know exactly how they formed.

Pa 30 may have resulted from an unusual, relatively low-energy explosion involving two white dwarfs, the dense cores left after stars shed their outer layers.

A white dwarf appears to have survived at the center, earning the name “zombie star.”

Studying the knots and surviving star may help astronomers understand how these rare explosions happen.

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