The sky on
your birthday.
“The Complex Ion Tail of Comet Lovejoy” is copyrighted by Velimir Popov & Emil Ivanov (IRIDA Observatory). NASA has permission to show it and we don't, so it isn't on this card.
See it on NASA's siteComet C/2014 Q2 (Lovejoy) shows an exquisitely detailed ion tail, made of gas energized by ultraviolet light from the Sun. The solar wind pushes this gas outward, and the Sun's complex magnetic field sculpts the solar wind. This interaction causes the structure in Comet Lovejoy's tail.
The Sun on 21 January 2015
NASA SDO took this picture on 21 January 2015, the day itself, not a release date.
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 2015 See it as a poster -
The Earth on your day The Earth on 21 January 2015 · Sahara, Algeria 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 2015 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 2015.
Questions about January 21, 2015
What space photo was released on January 21, 2015?
NASA's Astronomy Picture of the Day for January 21, 2015 was "The Complex Ion Tail of Comet Lovejoy". It's a photographer's copyrighted image, so we link to it on NASA's site and show the Sun or the Earth that day instead.
What was the Moon's phase on January 21, 2015?
A new moon, about 1% lit.
What day of the week was January 21, 2015?
January 21, 2015 was a Wednesday, day 21 of the 365 days in 2015.
What did the Sun and the Earth look like on January 21, 2015?
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.