The sky on
your birthday.
A Mystery In Gamma Rays
Gamma rays are the most energetic form of light. The EGRET instrument on the Compton Gamma-ray Observatory cataloged 271 celestial sources of high-energy gamma-rays in the 1990s. Some of these sources are known, but many remain a mystery to astronomers.
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 Earth on your day The Earth on 11 August 2001 · Namib Desert See it as a poster -
Released on 11 August 2010 Extracts from the VISTA Magellanic Cloud Survey view of the Tarantula Nebula See it as a poster -
Released on 11 August 2025 Low brightness, high interest See it as a poster -
Released on 11 August 2013 M74: The Perfect Spiral See it as a poster -
Released on 11 August 2026 IRS 3 Field (MIRI image) See it as a poster -
Released on 11 August 2021 Perseid Meteor Shower See it as a poster
In tropical astrology, 11 AUG 2001 falls under Leo (♌). The sign's window runs from 07-23 through 08-22. Leo is anchored by Regulus, the heart of the Lion, twenty-four parsecs from Earth. The Sun was crossing this region of the sky on 11 AUG 2001.
Questions about August 11, 2001
What space photo was released on August 11, 2001?
NASA's Astronomy Picture of the Day for August 11, 2001 was "A Mystery In Gamma Rays". It's the card at the top of this page.
What was the Moon's phase on August 11, 2001?
A last quarter moon, about 55% lit.
What day of the week was August 11, 2001?
August 11, 2001 was a Saturday, day 223 of the 365 days in 2001.
Was there a meteor shower on August 11, 2001?
Yes: the Perseid shower, peaks in 2 days.
What did the Sun and the Earth look like on August 11, 2001?
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.