The sky on
your birthday.
Io: The Prometheus Plume
Jupiter's volcanic moon Io displays two sulfurous eruptions in this Galileo image. On the left, a bluish plume rises about 86 miles above the surface from Pillan Patera. Near the night/day line, the ring-shaped Prometheus plume rises 45 miles, casting a shadow. Io is the most volcanically active body in the Solar System, constantly reshaping its surface.
Heavy matte paper, about 200 gsm, printed in the United States and shipped free. The card stays free, the print is the thing you keep.
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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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Released on 18 August 2012 Curiosity on Mars: Still Life with Rover See it as a poster -
Released on 18 August 2025 NGC 1309: A Useful Spiral Galaxy See it as a poster -
Released on 18 August 2025 Noteworthy nearby spiral See it as a poster -
Released on 18 August 2013 Skylab Over Earth See it as a poster -
Released on 18 August 2018 Earth's limb and dust storms in the Sahara are pictured as the International Space Station orbited nearly 252 miles See it as a poster
In tropical astrology, 18 AUG 1997 falls under Leo (♌). The sign's window runs from 07-23 through 08-22. Leo is anchored by Regulus, the heart of the Lion, twenty-four parsecs from Earth. The Sun was crossing this region of the sky on 18 AUG 1997.
Questions about August 18, 1997
What space photo was released on August 18, 1997?
NASA's Astronomy Picture of the Day for August 18, 1997 was "Io: The Prometheus Plume". It's the card at the top of this page.
What was the Moon's phase on August 18, 1997?
A full moon, about 100% lit.
What day of the week was August 18, 1997?
August 18, 1997 was a Monday, day 230 of the 365 days in 1997.
Was there a meteor shower on August 18, 1997?
Yes: the Perseid shower, peaked 5 days ago.
Is it free?
Yes. Seeing, sharing and downloading the card is free, and there's no account to make.