The sky on
your birthday.
Flowing Barchan Sand Dunes on Mars
On Mars, even sand dunes can look like flowing liquid. These barchan dunes, shaped by persistent winds, appear to drip and streak across the landscape. This image shows them on two flat-topped mesas in southern Mars, as the season shifts from spring to summer.
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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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The Earth on your day The Earth on 20 April 2009 · Gobi Desert See it as a poster -
Released on 20 April 2011 The disturbed galactic duo NGC 3169 and NGC 3166 See it as a poster -
Released on 20 April 2017 A sea of galaxies See it as a poster -
Released on 20 April 2011 A rose made of galaxies See it as a poster -
Released on 20 April 2026 Trifid Nebula (Wide Field Camera 3 Image) See it as a poster -
Released on 20 April 2011 Wide-field view of the sky around NGC 3169 and NGC 3166 See it as a poster
In tropical astrology, 20 APR 2009 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 20 APR 2009.
Questions about April 20, 2009
What space photo was released on April 20, 2009?
NASA's Astronomy Picture of the Day for April 20, 2009 was "Flowing Barchan Sand Dunes on Mars". It's the card at the top of this page.
What was the Moon's phase on April 20, 2009?
A waning crescent moon, about 19% lit.
What day of the week was April 20, 2009?
April 20, 2009 was a Monday, day 110 of the 365 days in 2009.
Was there a meteor shower on April 20, 2009?
Yes: the Lyrid shower, peaks in 2 days.
What did the Sun and the Earth look like on April 20, 2009?
NASA's Terra satellite photographed the whole Earth that day. It's on this page, next to the card.
Is it free?
Yes. Seeing, sharing and downloading the card is free, and there's no account to make.