Astronomy Picture of the Day · January 31, 1999

Welcome to the Planet Earth

The Astronomy Picture of the Day for January 31, 1999 is “Welcome to the Planet Earth,” an image. It is credited to Credit: Apollo 17 Crew, NASA. The original explanation runs about 117 words.

From the explanation

“Welcome to Planet Earth , the third planet from a star named the Sun . The Earth is shaped like a sphere and composed mostly of rock .”

— APOD editors, January 31, 1999

Read the full explanation on science.nasa.gov

At a glance

Date: January 31, 1999
Type: Image
Credit: Credit: Apollo 17 Crew, NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 117 words

All of January 1999 → · 1999 by month → · Full archive since 1995 →

Topics in this entry

The Sun

Topics are matched from words in the title and explanation.

On this day: January 31 in other years

On Amazon

Popular picks for space fans

As an Amazon Associate I earn from qualifying purchases.

Electronics Amazon Kindle Paperwhite Signature Edition 32GB Read astronomy and space-history books anywhere. View on Amazon → Electronics Bose QuietComfort Wireless Headphones Noise-cancelling headphones for documentaries and launch livestreams. View on Amazon →

Source

Astronomy Picture of the Day, January 31, 1999 — science.nasa.gov/image-article/apod-1999-january-31-welcome-to-planet-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.