The sky on
your birthday.
Sonified: The Matter of the Bullet Cluster
The Bullet Cluster, a massive collision of galaxy clusters, provides clues to the nature of dark matter. The gravitational lensing distortions of background galaxies suggest the presence of an unseen mass. While the leading theory points to dark matter, alternative explanations involving modified gravity are also being explored.
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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 16 December 2020 See it as a poster -
The Earth on your day The Earth on 16 December 2020 · Pilbara, Western Australia See it as a poster -
Released on 16 December 2024 Seeing eye to eye See it as a poster -
Released on 16 December 2004 A new view of the Helix Nebula See it as a poster -
Released on 16 December 2009 The star GJ1214 See it as a poster -
Released on 16 December 2008 NGC 2264 and the Christmas Tree cluster* See it as a poster -
Released on 16 December 2004 Helix Nebula: HST/CTIO Image See it as a poster
In tropical astrology, 16 DEC 2020 falls under Sagittarius (♐). The sign's window runs from 11-22 through 12-21. Sagittarius points straight at the center of the Milky Way, our galaxy's brightest region. The Sun was crossing this region of the sky on 16 DEC 2020.
Questions about December 16, 2020
What space photo was released on December 16, 2020?
NASA's Astronomy Picture of the Day for December 16, 2020 was "Sonified: The Matter of the Bullet Cluster". It's the card at the top of this page.
What was the Moon's phase on December 16, 2020?
A new moon, about 2% lit.
What day of the week was December 16, 2020?
December 16, 2020 was a Wednesday, day 351 of the 366 days in 2020.
Was there a meteor shower on December 16, 2020?
Yes: the Geminid shower, peaked 2 days ago.
What did the Sun and the Earth look like on December 16, 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.