The sky on
your birthday.
Parker: Sounds of the Solar Wind
What does the solar wind sound like? The Parker Solar Probe, close to the Sun, measures particle impacts and variable fields. This data is translated into sound. The resulting audio track includes spooky Langmuir Waves, hurricane-sounding Whistler Mode Waves, and hard-to-describe Dispersive Chirping Waves.
We cannot put this date's photograph on paper at poster size. We can print the nearest public archive plate to your date instead.
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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 January 2020 See it as a poster -
The Earth on your day The Earth on 21 January 2020 · Eye of the Sahara, Mauritania See it as a poster -
Released on 21 January 2016 Hubble Unveils a Tapestry of Dazzling Diamond-Like Stars See it as a poster -
Released on 21 January 2016 Dazzling diamonds of Trumpler 14 See it as a poster -
Released on 21 January 2004 Empty Nest See it as a poster -
Released on 21 January 2025 The city lights of Lima, Peru See it as a poster -
Released on 21 January 2025 The city lights of Buenos Aires, Argentina See it as a poster
In tropical astrology, 21 JAN 2020 falls under Aquarius (♒). The sign's window runs from 01-20 through 02-18. Aquarius is home to the Helix Nebula, the closest planetary nebula to Earth. The Sun was crossing this region of the sky on 21 JAN 2020.
Questions about January 21, 2020
What space photo was released on January 21, 2020?
NASA's Astronomy Picture of the Day for January 21, 2020 was "Parker: Sounds of the Solar Wind". It's the card at the top of this page.
What was the Moon's phase on January 21, 2020?
A waning crescent moon, about 16% lit.
What day of the week was January 21, 2020?
January 21, 2020 was a Tuesday, day 21 of the 366 days in 2020.
What did the Sun and the Earth look like on January 21, 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.