This was
your sky.
Comet C/2025 F2 SWAN
Comet C/2025 F2 SWAN was discovered by citizen scientists using data from the SOHO spacecraft's SWAN camera. The comet's coma, at lower left, has a greenish color from diatomic carbon molecules fluorescing in sunlight. Its faint ion tail extends nearly two degrees towards the upper right.
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.
-
Released on 18 April 2013 Star Factory Messier 17 See it as a poster -
Released on 18 April 2011 Hubble peers through the looking glass See it as a poster -
Released on 18 April 2016 The International Space Station over Earth See it as a poster -
Released on 18 April 2015 The Great Crater Hokusai See it as a poster -
Released on 18 April 2022 Hubble Inspects a Set of Galactic Wings See it as a poster
In tropical astrology, 18 APR 2025 falls under Aries (♈). The sign's window runs from 03-21 through 04-19. Aries is the constellation traditionally tied to spring's arrival in the northern hemisphere. The Sun was crossing this region of the sky on 18 APR 2025.