Science
APOD: Curious Cometary Knots in the Helix Nebula
Today's Astronomy Picture of the Day features curious cometary knots within the Helix Nebula, providing a fascinating view of cosmic phenomena.
Coverage timeline — 1 article
NASA
APOD Science APOD APOD: August 4, 2026 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss 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 writt
2026-08-04 04:05 UTC