The sky on
your birthday.
A Universe in a Box
This image is a computer simulation of the universe, billions of years ago. It shows how gas might have been distributed when the universe was only a quarter of its current age. Supercomputers at the National Center for Supercomputing Applications ran this model, based on assumptions about the universe's early composition. This hypothetical 'universe in a box' is about eight million light years across on each side.
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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Released on 21 August 2023 Webb captures detailed beauty of Ring Nebula (NIRCam image) See it as a poster -
Released on 21 August 2023 Webb captures detailed beauty of Ring Nebula (NIRCam image - cropped) See it as a poster -
Released on 21 August 2023 Webb captures detailed beauty of Ring Nebula (MIRI image - cropped) See it as a poster -
Released on 21 August 2023 Hubble’s view of the Ring Nebula (2013 image - cropped) See it as a poster -
Released on 21 August 2017 2017 Total Solar Eclipse See it as a poster
In tropical astrology, 21 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 21 AUG 1997.
Questions about August 21, 1997
What space photo was released on August 21, 1997?
NASA's Astronomy Picture of the Day for August 21, 1997 was "A Universe in a Box". It's the card at the top of this page.
What was the Moon's phase on August 21, 1997?
A waning gibbous moon, about 91% lit.
What day of the week was August 21, 1997?
August 21, 1997 was a Thursday, day 233 of the 365 days in 1997.
Is it free?
Yes. Seeing, sharing and downloading the card is free, and there's no account to make.