Astronomy Picture of the Day · September 13, 2004

Identify this Phenomenon

The Astronomy Picture of the Day for September 13, 2004 is “Identify this Phenomenon,” an image. It is credited to Credit: Walter Lewin ( MIT ). The original explanation runs about 144 words.

From the explanation

“What caused this ring of colors? At the time of this writing, MIT Physics Professor Walter Lewin had yet to find someone who can give the correct explanation.”

— APOD editors, September 13, 2004

Read the full explanation on science.nasa.gov

At a glance

Date: September 13, 2004
Type: Image
Credit: Credit: Walter Lewin ( MIT )
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 144 words

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On this day: September 13 in other years

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Source

Astronomy Picture of the Day, September 13, 2004 — science.nasa.gov/image-article/apod-2004-september-13-identify-this-phenomenon

Copy taken Oct 28, 2026, 2:39 AM EDT. The image and explanation belong to their creators. OpenOrbit is not affiliated with or endorsed by NASA.