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Prof. Sam Lawler
Prof. Sam Lawler
@sundogplanets@mastodon.social  ·  activity timestamp 11 hours ago

EVERYONE!! Fomalhaut is at it again!! Crashing its planetesimals together and making dust clouds!!!!

I am very excited because I and others wrote papers saying that this would happen: if Fomalhaut b (the first directly imaged "exoplanet" oops) was actually a dust cloud, it should fade away and another one should appear on ~decade timescales.

I love being right about science predictions that don't involve destroying the night sky or atmosphere or Kessler Syndrome!

https://arxiv.org/pdf/2512.15861

https://arxiv.org/pdf/2512.15861
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Stephanie 🎀
Stephanie 🎀
@BeamsAndBows@mastodon.sdf.org replied  ·  activity timestamp 3 hours ago

@sundogplanets The Sun: ah, I remember those days. I was a young star back then. ☀️

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Tobias Fiebig
Tobias Fiebig
@tfiebig@wybt.net replied  ·  activity timestamp 8 hours ago

@sundogplanets Congrats! :-)

.oO( I would really love to do science where my predictions come true and I can be happy about it; Don't get me wrong... I _do_ science where my predictions become true. However, that usually means that something really depressing is happening. -_- )

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Prof. Sam Lawler
Prof. Sam Lawler
@sundogplanets@mastodon.social replied  ·  activity timestamp 11 hours ago

I learned about this from a planetary journal club at UBC that I had time to run to (while still mic'd) between filming. The journal club was led by my PhD supervisor, who I wrote a paper with on Fomalhaut planetesimal collisions back in 2015!

Damn it's fun to do some real science in between all the depressing stuff.

https://arxiv.org/pdf/1412.1129

https://arxiv.org/pdf/1412.1129
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Dan Sugalski
Dan Sugalski
@wordshaper@weatherishappening.network replied  ·  activity timestamp 11 hours ago

@sundogplanets Hah! Is it Kessler Syndrome for a star if it's crashing its own planets into bits?

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