Astronomy Picture of the Day ·

Ski Mars!

The Astronomy Picture of the Day for April 1, 1999 is “Ski Mars!,” an image. It is credited to Image Credit: Malin Space Science Systems, MGS, JPL, NASA. The original explanation runs about 126 words.

Ski Mars!
Credit: Image Credit: Malin Space Science Systems, MGS, JPL, NASA Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“These brightly reflecting fields of snow or frost are on the slopes of a crater rim in the northern hemisphere of Mars . They are 500 meters or so long and have lasted through about eight months of the Red Planet’s spring and summer weather .”

— APOD editors, April 1, 1999

Read the full explanation on science.nasa.gov

At a glance

Date
April 1, 1999
Type
Image
Credit
Credit: Image Credit: Malin Space Science Systems, MGS, JPL, NASA
Copyright
No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length
About 126 words

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

Topics in this entry

Mars

Topics are matched from words in the title and explanation.

On this day: April 1 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

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.