Sarah Watson
sarahrosewatson.bsky.social
Sarah Watson
@sarahrosewatson.bsky.social
3rd year PhD student at Uni of Reading.
Studying solar wind interactions with minor planetary bodies☀️☄️
Excited for this! The comet may cross the heliospheric current sheet, which can affect the tail of a comet, so will be interesting to see if we see any evidence of this.😍☄️
October 3, 2025 at 9:59 AM
Thought I would go say hi to the thing that is currently providing me with content for my PhD thesis ☀️😍
August 27, 2025 at 3:12 PM
Reposted by Sarah Watson
One of my favourite stories I’ve written this year.

A third known interstellar object is flying through our solar system right now. What are the 7 biggest questions we want to answer about it?

Story by me in @sciam.bsky.social

www.scientificamerican.com/article/new-...
New Interstellar Object Is Full of Mysteries. Here’s What Scientists Most Want to Learn
Scientists are racing to learn as much as possible about the interstellar comet 3I/ATLAS before it fades from view forever
www.scientificamerican.com
July 17, 2025 at 3:55 PM
Reposted by Sarah Watson
LOOK AT THE FUZZY LITTLE COMET
So, what do these observations from @vrubinobs.bsky.social show us about 3I/ATLAS? Well, from as early as June 21, ten days prior to discovery and the earliest that any large-aperture telescope has imagery — it's a comet. The July 3 stack shows it really clearly
July 21, 2025 at 7:17 AM
A GIF of my images of the eclipse this weekend, using the SeeStar telescope! ☀️🌕 😍(The most spectacular thing about it being that there were no clouds in Reading throughout!!)
March 31, 2025 at 9:45 AM
Check out my recent paper, just published in ApJ! ☄️
@sarahrosewatson.bsky.social has just published a nice study of how comet tail disconnections are associated with particular structures in the solar wind (the heliospheric current sheet). And how data assimilation enables us to better forecast these structures.

iopscience.iop.org/article/10.3...
March 27, 2025 at 1:52 PM
Reposted by Sarah Watson
Comet C/2024 G3 (ATLAS) spotted in full glory by #SolarOrbiter.

The #comet was observed with the SoloHI instrument from the U.S. Naval Research Laboratory.

The encounter happened on 14-25 January, while Solar Orbiter was heading toward #Venus and the comet coincidentally swung by the #Sun.

🔭 🧪
March 21, 2025 at 2:00 PM