The sky on
your birthday.
Neutron Mars
To find water on Mars, the Mars Odyssey spacecraft created this false-color map of energetic neutrons. Cosmic rays hit the Martian surface, scattering neutrons. If hydrogen, a component of water, is present, it absorbs these neutrons. Areas with fewer neutrons indicate the presence of hydrogen, suggesting water ice or hydrated minerals in the soil.
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 4 September 2004 · Atacama and the Andes See it as a poster -
Released on 4 September 2003 Full ACS Image of NGC 3370 See it as a poster -
Released on 4 September 2024 MACS J0417.5-1154 Wide Field (NIRCam) See it as a poster -
Released on 4 September 2003 Celestial composition See it as a poster -
Released on 4 September 2025 Pismis 24 (NIRCam image) See it as a poster -
Released on 4 September 2022 Hurricane Danielle is pictured near the Earth's horizon from the International Space Station as it orbited 261 miles See it as a poster
In tropical astrology, 4 SEP 2004 falls under Virgo (♍). The sign's window runs from 08-23 through 09-22. Virgo is the largest zodiac constellation, holding the heart of the Virgo galaxy cluster. The Sun was crossing this region of the sky on 4 SEP 2004.
Questions about September 4, 2004
What space photo was released on September 4, 2004?
NASA's Astronomy Picture of the Day for September 4, 2004 was "Neutron Mars". It's the card at the top of this page.
What was the Moon's phase on September 4, 2004?
A waning gibbous moon, about 77% lit.
What day of the week was September 4, 2004?
September 4, 2004 was a Saturday, day 248 of the 366 days in 2004.
What did the Sun and the Earth look like on September 4, 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.