Astronomy Picture of the Day · April 21, 1996

A Supernova in the Whirlpool

The Astronomy Picture of the Day for April 21, 1996 is “A Supernova in the Whirlpool,” an image. It is credited to Credit: R. Kirshner (CfA), NASA. The original explanation runs about 140 words.

From the explanation

“In 1994, a new star in a distant galaxy was seen by amateur astronomers , who alerted the world to their discovery of a supernova .”

— APOD editors, April 21, 1996

Read the full explanation on science.nasa.gov

At a glance

Date: April 21, 1996
Type: Image
Credit: Credit: R. Kirshner (CfA), NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 140 words

All of April 1996 → · 1996 by month → · Full archive since 1995 →

Topics in this entry

Galaxies Supernovae

Topics are matched from words in the title and explanation.

On this day: April 21 in other years

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Source

Astronomy Picture of the Day, April 21, 1996 — science.nasa.gov/image-article/apod-1996-april-21-a-supernova-in-the-whirlpool

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.