Seán Doran
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Seán Doran
@theseaning.bsky.social
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Reposted by Seán Doran
Last night’s moderate #SolarFlare likely released more energy than the majority of larger X-class events. Why? Flare classifications are determined by the flare’s *peak* emission. Although last night’s flare capped at an M3 level, it continued releasing energy for over 12 hours!
January 12, 2026 at 2:58 PM
Reposted by Seán Doran
Ice spires (around 100 metres tall) on Jupiter's moon Callisto. It is thought that these formed from an ancient impact billions of years ago. They are very slowly eroding over time, the ice subliming and dust within the ice accumulating to absorb Sunlight and continue the erosion.

#sciart #spaceart
January 8, 2026 at 8:10 PM
Reposted by Seán Doran
This is what it would look like to fly over the Martian North Pole aboard @esa.int's Mars Express orbiter.

This sequence of 117 images was captured by the VMC camera on June 14th, 2019 over the course of 3 hours and is played a 1200x speed. #planetsci

Credit: ESA/Simeon Schmauß

flic.kr/p/2rQAPdw
January 6, 2026 at 7:00 PM
Reposted by Seán Doran
Happy Nollaig na mBan! Here's a piece celebrating some of Ireland's most interesting women, with a thread about each of them here:
bsky.app/profile/ciar...

Prints also available (currently on sale):
www.ciaraioch.com/artprints/p/...
January 6, 2026 at 8:27 AM
Some of the recent videos released on my return to Youtube...

youtube.com/seandoran/videos
January 5, 2026 at 2:29 PM
Reposted by Seán Doran
Menkib and the California Nebula. After failing to get the whole nebula into the FOV, I tried something different: focusing on the tension between that beast of a star and the nebula.
Gear: 130/910 mm APO, ASI 2600MM Pro & SHORGB filters. Total exposure: ~15 hours over 4 nights. #astrophotography
November 23, 2025 at 5:17 PM
Reposted by Seán Doran
I haven’t posted in a while, so here we go. The Flaming Star Nebula, captured from my backyard.

Gear: TS-Optics apo 130/910, ASI 2600mm pro, Antlia narrowband & RGB filters. Exposure: about 48 hours

#astrophotography #space #nebula #astronomy
January 4, 2026 at 6:46 PM
Reposted by Seán Doran
'Moonfall'

946 images by Don Pettit are repaired, remastered & retimed to create this film with music by Chris Zabriskie.

You can watch the 4k UHD real time video here...

youtu.be/_llSxc_08Lo
January 4, 2026 at 3:55 PM
'Moonfall'

946 images by Don Pettit are repaired, remastered & retimed to create this film with music by Chris Zabriskie.

You can watch the 4k UHD real time video here...

youtu.be/_llSxc_08Lo
January 4, 2026 at 3:55 PM
Reposted by Seán Doran
'Bathed In Light'

1,899 images by Nichole Ayers are repaired, remastered & retimed to create this beautiful 4k UHD 3x real time video with an exquisite soundtrack by Andreas Vollenweider.

youtu.be/fOLwwADo1V0

You wanna give this at least 40 seconds...
January 3, 2026 at 7:49 PM
'Bathed In Light'

1,899 images by Nichole Ayers are repaired, remastered & retimed to create this beautiful 4k UHD 3x real time video with an exquisite soundtrack by Andreas Vollenweider.

youtu.be/fOLwwADo1V0

You wanna give this at least 40 seconds...
January 3, 2026 at 7:49 PM
Reposted by Seán Doran
Greetings all, and I hope that the first complete rotation of our planet in this new year has been kind.

Here's an animation of the planet Mars rising above its innermost moon, Phobos, as the latter rotates.

#SciArt #blender #spaceart
January 2, 2026 at 2:05 PM
'Noctilucent'

452 images by Matthew Dominick are repaired, remastered & retimed to create this 3x & 2x real time video footage of noctilucent clouds illuminated by pre-dawn sunrise.

Credit: Matthew Dominick / ISS / NASA / ESRS / Seán Doran

youtu.be/iO-SAhBWvS4
January 2, 2026 at 1:49 PM
Reposted by Seán Doran
'USA Speedrun'
Images captured by Don Pettit from ISS during Expedition 30 are repaired, processed, retimed & star-trailed with music by Chris Zabriskie.
Credit: Don Pettit / ISS / NASA / ESRS / Seán Doran
October 17, 2024 at 5:48 PM
'Gold Coast'

This is the real-time view from ISS in orbit above the Gold Coast of California and Mexico. 1,183 images by Matthew Dominick are repaired, remastered & retimed to create this 4K UHD video footage.

Credit: Matthew Dominick / ISS / NASA / ESRS / Seán Doran

youtu.be/ZEfmYROSgow
ISS - Gold Coast
YouTube video by Seán Doran
youtu.be
January 1, 2026 at 1:49 PM
Reposted by Seán Doran
'United States Of Beauty'

This is the view from ISS as it orbits Earth above USA & Canada. In reality the journey from California to Quebec took 11 minutes to traverse, this 4K UHD film slows that speed by a factor of 4.

Credit: Loral O'Hara / ISS / NASA / ESRS / Seán Doran

youtu.be/3E9e7PyxiT8
ISS - United States of Beauty
YouTube video by Seán Doran
youtu.be
December 31, 2025 at 10:01 PM
'United States Of Beauty'

This is the view from ISS as it orbits Earth above USA & Canada. In reality the journey from California to Quebec took 11 minutes to traverse, this 4K UHD film slows that speed by a factor of 4.

Credit: Loral O'Hara / ISS / NASA / ESRS / Seán Doran

youtu.be/3E9e7PyxiT8
ISS - United States of Beauty
YouTube video by Seán Doran
youtu.be
December 31, 2025 at 10:01 PM
Reposted by Seán Doran
'USA · 8K'

Here is the wide angle view from ISS in orbit above the United States of America. 2,031 images photographed by Loral O'Hara are repaired, remastered & retimed to create this 8K UHD real time video footage.

Credit: Loral O'Hara / ISS / NASA / ESRS / Seán Doran

youtu.be/_qfZBfI-M7I
ISS - USA · 8K
YouTube video by Seán Doran
youtu.be
December 30, 2025 at 5:51 PM
'USA · 8K'

Here is the wide angle view from ISS in orbit above the United States of America. 2,031 images photographed by Loral O'Hara are repaired, remastered & retimed to create this 8K UHD real time video footage.

Credit: Loral O'Hara / ISS / NASA / ESRS / Seán Doran

youtu.be/_qfZBfI-M7I
ISS - USA · 8K
YouTube video by Seán Doran
youtu.be
December 30, 2025 at 5:51 PM
Reposted by Seán Doran
'Squid Game'

1,782 images from a time-lapse sequence photographed by Kimiya Yui are repaired, remastered & retimed to create this 4k UHD 3x real time video footage.

Credit: Kimiya Yui / ISS / NASA / ESRS / Seán Doran

youtu.be/kthTL8lUqdA
ISS - Squid Game
YouTube video by Seán Doran
youtu.be
December 29, 2025 at 5:16 PM
Reposted by Seán Doran
After a 2-year hiatus, I finally posted on Medium again (and after like 4 months off Bluesky, hello again!).

My goal for 2026 is to write more, and this felt like a good impetus to restart the blog and also explain where my head was at during my time away:

tanyaofmars.medium.com/reflections-...
Reflections and Returning to Writing (Or, Another Post About Self-Exploration Rather Than Space…
It’s been almost exactly two years since I last posted here.
tanyaofmars.medium.com
December 29, 2025 at 4:57 PM
Reposted by Seán Doran
HiPOD: 100,000 Images of Mars

On 7 October 2025, the HiRiSE camera aboard MRO acquired this image of the Syrtis Major plains. This marks over 100,000 HiRISE images of Mars, which is a fabulous milestone!

More: https://uahirise.org/ESP_089986_1980
NASA/JPL-Caltech/University of Arizona
#Mars
December 16, 2025 at 5:30 PM
'Squid Game'

1,782 images from a time-lapse sequence photographed by Kimiya Yui are repaired, remastered & retimed to create this 4k UHD 3x real time video footage.

Credit: Kimiya Yui / ISS / NASA / ESRS / Seán Doran

youtu.be/kthTL8lUqdA
ISS - Squid Game
YouTube video by Seán Doran
youtu.be
December 29, 2025 at 5:16 PM
Reposted by Seán Doran
'Moonrise Sunrise'

2,308 images photographed by Jonny Kim are repaired, remastered & retimed to create this 6x real time video footage.

Credit: Jonny Kim / ISS / NASA / ESRS / Seán Doran

youtu.be/PjMRIzXn-RU
December 27, 2025 at 11:28 PM