This was
your sky.
A Proton Arc Over Lake Superior
Late last August, a beautiful night sky over Lake Superior was lit up with auroral green. The astrophotographer, after a five-hour drive, witnessed a rare proton arc appear. This red arc lasted for about 20 minutes, a unique sight in the otherwise green aurora.
We cannot put this date's photograph on paper at poster size. We can print the nearest public archive plate to your date instead.
Prints are coming soon. The card is free to save and share in the meantime.
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 3 August 2020 Seeing Near and Far See it as a poster -
Released on 3 August 2011 The Leo Triplet Galaxies from VST See it as a poster -
Released on 3 August 2014 Dark Shuttle Approaching See it as a poster -
Released on 3 August 2022 The sun's glint beams off Lake Nasser in Southern Egypt in this photograph from the International Space Station as it See it as a poster -
Released on 3 August 2025 Meteor Shower See it as a poster
In tropical astrology, 3 AUG 2015 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 3 AUG 2015.