This was
your sky.
The Colliding Spiral Galaxies of Arp 271
The two spiral galaxies, NGC 5426 and NGC 5427, are in the process of a slow collision, known as Arp 271. Over tens of millions of years, their gravitational forces will distort each other, but the individual stars within them are unlikely to collide. This interaction will eventually lead to a merger, forming a single, larger galaxy.
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 21 July 2011 Stars in the Andromeda Galaxy’s halo with background galaxies (1) See it as a poster -
Released on 21 July 2011 Stars in the Andromeda Galaxy’s halo with background galaxies (2) See it as a poster -
Released on 21 July 2016 Wide-field image of Abell S1063 (ground-based image) See it as a poster -
Released on 21 July 2011 Stars in the Andromeda Galaxy’s disc See it as a poster -
Released on 21 July 2011 Stars in the Andromeda Galaxy’s giant stellar stream See it as a poster
In tropical astrology, 21 JUL 2008 falls under Cancer (♋). The sign's window runs from 06-21 through 07-22. Cancer is marked by the Beehive Cluster, M44, a loose family of stars visible to the naked eye on a dark night. The Sun was crossing this region of the sky on 21 JUL 2008.