The sky on
your birthday.
GW190521: Unexpected Black Holes Collide
The gravitational wave event GW190521 came from two black holes colliding. Their masses, 66 and 85 solar masses, were unexpected. Black holes below about 65 solar masses form from supernova explosions. Black holes above about 135 solar masses are thought to come from very massive stars collapsing. The formation of these intermediate-mass black holes is still a mystery.
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 8 September 2020 See it as a poster -
The Earth on your day The Earth on 8 September 2020 · Nile Delta and Sinai See it as a poster -
Released on 8 September 2010 Wide Field Imager view of the southern spiral NGC 300 See it as a poster -
Released on 8 September 2017 EHDC2 See it as a poster -
Released on 8 September 2000 Mars Daily Global Image from April 1999 See it as a poster -
Released on 8 September 1998 A Cluster Too Far See it as a poster -
Released on 8 September 2013 Roll Cloud Over Wisconsin See it as a poster
In tropical astrology, 8 SEP 2020 falls under Virgo (♍). The sign's window runs from 08-23 through 09-22. Virgo is the largest zodiac constellation, holding the heart of the Virgo galaxy cluster. The Sun was crossing this region of the sky on 8 SEP 2020.
Questions about September 8, 2020
What space photo was released on September 8, 2020?
NASA's Astronomy Picture of the Day for September 8, 2020 was "GW190521: Unexpected Black Holes Collide". It's the card at the top of this page.
What was the Moon's phase on September 8, 2020?
A last quarter moon, about 68% lit.
What day of the week was September 8, 2020?
September 8, 2020 was a Tuesday, day 252 of the 366 days in 2020.
What did the Sun and the Earth look like on September 8, 2020?
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.