This was
your sky.
Spiral Aurora over Icelandic Divide
This aurora, a great green spiral, is seen over the Icelandic Divide. Auroras are created by waves of charged particles interacting with Earth's magnetic field. In 1859, a strong pulse of charged particles from a solar flare caused auroras globally and impacted Earth's magnetosphere.
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 April 2025 A glittering cluster shines again See it as a poster -
Released on 21 April 2016 The Bubble Nebula See it as a poster -
Released on 21 April 2016 Wide-field image of the Bubble Nebula (ground-based image) See it as a poster -
Released on 21 April 2021 Apollo Footprint See it as a poster -
Released on 21 April 2014 Cosmic fairy lights See it as a poster
In tropical astrology, 21 APR 2019 falls under Taurus (♉). The sign's window runs from 04-20 through 05-20. Taurus holds the Pleiades star cluster and Aldebaran, the red giant that marks the eye of the Bull. The Sun was crossing this region of the sky on 21 APR 2019.