The sky on
your birthday.
“Titan Disguised” is copyrighted by Mark Garlick (Space-art). NASA has permission to show it and we don't, so it isn't on this card.
See it on NASA's siteSaturn's largest moon, Titan, has a surface normally hidden from view by thick methane clouds. The Cassini spacecraft, orbiting Saturn, released the Huygens probe to descend toward this mysterious moon. What the car-sized probe would find was unknown, but it was designed to survive for as long as 150 minutes on the surface. Huygens was expected to take as many as 1,100 images, beaming them up to Cassini for relay to Earth.
The Earth on 21 December 2004 · Eye of the Sahara, Mauritania
NASA Terra took this picture on 21 December 2004, 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 Earth on your day The Earth on 21 December 2004 · Eye of the Sahara, Mauritania See it as a poster -
Released on 21 December 2015 SN Refsdal: The First Predicted Supernova Image See it as a poster -
Released on 21 December 2006 Portrait of a dramatic stellar crib* See it as a poster -
Released on 21 December 2022 A Wreath of Star Formation in NGC 7469 See it as a poster -
Released on 21 December 2009 Star Cluster R136 Bursts Out See it as a poster -
Released on 21 December 2023 Webb spots a second lensed supernova in a distant galaxy See it as a poster
In tropical astrology, 21 DEC 2004 falls under Sagittarius (♐). The sign's window runs from 11-22 through 12-21. Sagittarius points straight at the center of the Milky Way, our galaxy's brightest region. The Sun was crossing this region of the sky on 21 DEC 2004.
Questions about December 21, 2004
What space photo was released on December 21, 2004?
NASA's Astronomy Picture of the Day for December 21, 2004 was "Titan Disguised". 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 December 21, 2004?
A waxing gibbous moon, about 71% lit.
What day of the week was December 21, 2004?
December 21, 2004 was a Tuesday, day 356 of the 366 days in 2004.
Was there a meteor shower on December 21, 2004?
Yes: the Ursid shower, peaks tomorrow.
What did the Sun and the Earth look like on December 21, 2004?
NASA's Terra satellite photographed the whole Earth that day. It's 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.