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APOD: August 4, 2026 – Curious Cometary Knots in the Helix Nebula
The James Webb Space Telescope captured an infrared image of cometary knots within the Helix Nebula (NGC 7293). These are unusual concentrations of gas and dust with origins that are not yet well understood.
Why it matters
Because the nebula formed from a Sun-like star, studying it helps researchers understand the eventual fate of our own solar system.
The details
- Knots have masses similar to Earth but exceed Pluto's orbit in size.
- One hypothesis suggests energetic stellar winds drive out existing gas from the star.
- The Helix Nebula is located about 650 light-years away in Aquarius.
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Key connections
James Webb Space Telescope uses Infrared Astronomy
James Webb Space Telescope conducts observations in infrared light.
Related events
Aug 4, 2026•27d ago
•Scientific ObservationJames Webb Space Telescope Captures Detailed Infrared Image of Helix Nebula Cometary Knots
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