The sky on
your birthday.
Moonquakes Surprisingly Common
Why are there so many moonquakes? Analyses of seismometers left on the Moon by the Apollo landings reveal a surprising number of moonquakes occurring within 100 kilometers of the surface. 62 moonquakes were detected between 1972 and 1977. Many of these moonquakes are strong enough to move furniture in a lunar apartment, and the stiff rock of the Moon continues to vibrate for many minutes.
Heavy matte paper, about 200 gsm, printed in the United States and shipped free. The card stays free, the print is the thing you keep.
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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 Sun on your day The Sun on 21 July 2019 See it as a poster -
The Earth on your day The Earth on 21 July 2019 · Italy and the Adriatic See it as a poster -
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 2019 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 2019.
Questions about July 21, 2019
What space photo was released on July 21, 2019?
NASA's Astronomy Picture of the Day for July 21, 2019 was "Moonquakes Surprisingly Common". It's the card at the top of this page.
What was the Moon's phase on July 21, 2019?
A waning gibbous moon, about 82% lit.
What day of the week was July 21, 2019?
July 21, 2019 was a Sunday, day 202 of the 365 days in 2019.
What did the Sun and the Earth look like on July 21, 2019?
NASA's Solar Dynamics Observatory photographed the Sun that day, and NASA's Terra satellite photographed the whole Earth. Both are 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.