The sky on
your birthday.
“Mimas: Small Moon with a Big Crater” is copyrighted by NASA, JPL-Caltech, Space Science Institute, Cassini. NASA has permission to show it and we don't, so it isn't on this card.
See it on NASA's siteMimas, one of Saturn's smaller moons, bears a massive impact crater named Herschel. This crater spans about 130 kilometers, and the impact nearly shattered the moon. Mimas has just enough mass to be spherical, but its gravity is weak enough to allow such a relatively large surface feature. The Cassini spacecraft captured this image.
The Sun on 31 May 2021
NASA SDO took this picture on 31 May 2021, the day itself, not a release date.
We cannot put this date's photograph on paper at poster size. We can print the nearest public archive plate to your date instead.
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Released on your day
Space pictures released on your month and day in other years, or a few days either side. Each one is sharp enough to print as a poster.
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The Sun on your day The Sun on 31 May 2021 See it as a poster -
The Earth on your day The Earth on 31 May 2021 · Red Sea See it as a poster -
Released on 31 May 2010 The massive compact star cluster in NGC 3603 and its surroundings See it as a poster -
Released on 31 May 2018 Peculiar galaxy NGC 3256 See it as a poster -
Released on 31 May 2018 Wide-field image of NGC 3256 (ground-based image) See it as a poster -
Released on 31 May 2021 The Eponymous NGC 691 See it as a poster -
Released on 31 May 2026 Eagle Nebula Pillars in Infrared from Hubble See it as a poster
In tropical astrology, 31 MAY 2021 falls under Gemini (♊). The sign's window runs from 05-21 through 06-20. Gemini is named for the twin stars Castor and Pollux, both bright enough to spot without a telescope. The Sun was crossing this region of the sky on 31 MAY 2021.
Questions about May 31, 2021
What space photo was released on May 31, 2021?
NASA's Astronomy Picture of the Day for May 31, 2021 was "Mimas: Small Moon with a Big Crater". It's a photographer's copyrighted image, so we link to it on NASA's site and show the Sun or the Earth that day instead.
What was the Moon's phase on May 31, 2021?
A waning gibbous moon, about 75% lit.
What day of the week was May 31, 2021?
May 31, 2021 was a Monday, day 151 of the 365 days in 2021.
What did the Sun and the Earth look like on May 31, 2021?
NASA's Solar Dynamics Observatory photographed the Sun that day, and NASA's Terra satellite photographed the whole Earth. Both are on this page, next to the card.
Is it free?
Yes. Seeing, sharing and downloading the card is free, and there's no account to make.