This Week in Astronomy with Dave Eicher: The Zodiacal light

The elusive zodiacal light is currently visible in the east before dawn.
By | Published: September 15, 2025 | Last updated on September 16, 2025

Gemini Sparkle

Key Takeaways:

  • Astronomy magazine's Editor Emeritus, Dave Eicher, encourages pre-dawn observation of the zodiacal light.
  • The zodiacal light is described as having a triangular, inverted cone-like appearance.
  • Successful observation requires a dark location and clear atmospheric conditions.
  • The phenomenon is situated along the zodiac constellations, following the ecliptic.

In this episode, Astronomy magazine Editor Emeritus Dave Eicher invites you to head out in the morning while it’s still dark, just before astronomical twilight, look to the east, and try to see the elusive zodiacal light. It will have a triangular shape, like an upside-down cone, and it will extend along the belt of the zodiac, the group of constellations that follows the ecliptic in the sky. You’ll need a dark site and clear weather. Good luck!