Astronomy Picture of the Day · April 21, 2008

Bacteriophages: The Most Common Life-Like Form on Earth

The Astronomy Picture of the Day for April 21, 2008 is “Bacteriophages: The Most Common Life-Like Form on Earth,” an image. It is credited to Credit: Wikipedia ; Insert: Mike Jones. The original explanation runs about 164 words.

From the explanation

“There are more bacteriophages on Earth than any other life-like form. These small viruses are not clearly a form of life , since when not attached to bacteria they are completely dormant.”

— APOD editors, April 21, 2008

Read the full explanation on science.nasa.gov

At a glance

Date: April 21, 2008
Type: Image
Credit: Credit: Wikipedia ; Insert: Mike Jones
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 164 words

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On this day: April 21 in other years

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Source

Astronomy Picture of the Day, April 21, 2008 — science.nasa.gov/image-article/apod-2008-april-21-bacteriophages-the-most-common-life-like-form-on-earth

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.