Astronomy Picture of the Day · October 15, 2001

The Earth and Moon Planetary System

The Astronomy Picture of the Day for October 15, 2001 is “The Earth and Moon Planetary System,” an image. It is credited to Credit: Northwestern University , JPL , NASA. The original explanation runs about 103 words.

From the explanation

“How similar in size are the Earth and the Moon ? A dramatic visual answer to this question is found by combining photographs taken by the Mariner 10 spacecraft that headed out toward Venus and Mercury in 1973.”

— APOD editors, October 15, 2001

Read the full explanation on science.nasa.gov

At a glance

Date: October 15, 2001
Type: Image
Credit: Credit: Northwestern University , JPL , NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 103 words

All of October 2001 → · 2001 by month → · Full archive since 1995 →

Topics in this entry

The Moon Venus

Topics are matched from words in the title and explanation.

On this day: October 15 in other years

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Source

Astronomy Picture of the Day, October 15, 2001 — science.nasa.gov/image-article/apod-2001-october-15-the-earth-and-moon-planetary-system

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.