The sky on
your birthday.
Adirondack Rock on Mars
This football-sized rock, dubbed Adirondack, was the first destination for the Spirit rover on Mars. Its relatively large size and dust-free surface made it ideal for study. Spirit, about the size of a golf cart, used its robotic arm to analyze the rock's composition and history, searching for clues about the Martian surface.
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 January 2004 · Empty Quarter, Arabia See it as a poster -
Released on 21 January 2016 Hubble Unveils a Tapestry of Dazzling Diamond-Like Stars See it as a poster -
Released on 21 January 2016 Dazzling diamonds of Trumpler 14 See it as a poster -
Released on 21 January 2004 Empty Nest See it as a poster -
Released on 21 January 2025 The city lights of Lima, Peru See it as a poster -
Released on 21 January 2025 The city lights of Buenos Aires, Argentina See it as a poster
In tropical astrology, 21 JAN 2004 falls under Aquarius (♒). The sign's window runs from 01-20 through 02-18. Aquarius is home to the Helix Nebula, the closest planetary nebula to Earth. The Sun was crossing this region of the sky on 21 JAN 2004.
Questions about January 21, 2004
What space photo was released on January 21, 2004?
NASA's Astronomy Picture of the Day for January 21, 2004 was "Adirondack Rock on Mars". It's the card at the top of this page.
What was the Moon's phase on January 21, 2004?
A new moon, about 1% lit.
What day of the week was January 21, 2004?
January 21, 2004 was a Wednesday, day 21 of the 366 days in 2004.
What did the Sun and the Earth look like on January 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.