Astronomy Picture of the Day · January 1, 1998

The Largest Rock Known

The Astronomy Picture of the Day for January 1, 1998 is “The Largest Rock Known,” an image. It is credited to Credit: Voyager 1, NASA. The original explanation runs about 129 words.

From the explanation

“There, that faint dot in the center – that’s the largest rock known. It is larger than every known asteroid , moon , and comet nucleus .”

— APOD editors, January 1, 1998

Read the full explanation on science.nasa.gov

At a glance

Date: January 1, 1998
Type: Image
Credit: Credit: Voyager 1, NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 129 words

All of January 1998 → · 1998 by month → · Full archive since 1995 →

Topics in this entry

Comets Asteroids

Topics are matched from words in the title and explanation.

On this day: January 1 in other years

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Source

Astronomy Picture of the Day, January 1, 1998 — science.nasa.gov/image-article/apod-1998-january-01-the-largest-rock-known

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.