Channon Visscher

@cvisscher.bsky.social

Professor of Chemistry & Planetary Sciences at Dordt University (IA) and Research Scientist with the Space Science Institute (CO) Github: https://cvisscher.github.io/

Got a good job down at the Data Center. I work on the line, and it's hard work but it's honest and the wage is fair; my family and I are grateful for it. I rivet the word "absolutely" onto the little apologies that chatbots do when they misunderstand a prompt.

Aaron Rupar@atrupar.com · 5d ago

Hassett: "Data centers are very good for towns bc they create so many jobs & bring people in with high incomes that can buy houses & stuff like that. So if you take a sleepy town that hasn't seen much in the last 30 years & put a data center there, there are gonna be a bunch of happy residents."

🔭 New paper day! 🪐 This time from Merle Schrader, a PhD student in the brown dwarf group at Trinity College Dublin. Today, they're publishing a fresh look at SIMP-0136, using principal component analysis, identifying the mechanisms driving its atmospheric variability. arxiv.org/abs/2607.26182

The JWST weather report: Unravelling the atmospheric variability of isolated worlds using principal component analysis

Brown dwarf variability directly probes atmospheric dynamics beyond the Solar System, and recent JWST time-resolved spectroscopy has opened a new window into these processes. Principal component analy...

arxiv.org

The Federal OMB has proposed a sweeping set of rule changes for research grants: *changes that would be harmful to scientific research* If you'd like to speak out, they are still accepting comments on the proposed changes until July 13: www.federalregister.gov/documents/20...

Regulation for Federal Financial Assistance

The Office of Management and Budget (OMB) proposes to revise the Guidance for Federal Financial Assistance to improve government- wide policies and requirements related to the management of grants, co...

federalregister.gov

I don’t have strong feelings about it but personally prefer a geophysical definition of a planet, which would include Pluto But I do think that if a reporter asks about Pluto, you should immediately mention how NASA funding & our ability to study interesting objects like Pluto is under dire threat

This is possibly the most incredible tracking video of a rocket launch that I have ever seen, and Shuttle had some really incredible videos too! Just look at those gorgeous flame dynamics and then the booster separation... 🔭🧪 #Artemis

The US immigrant population generated more in taxes than they received in benefits from all levels of government every year from 1994 to 2023. The Cato study provides the first-ever 30-year analysis of the fiscal effects of immigration on government budgets. https://ow.ly/jy8a50Y8kM3

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we had spent much of the (chilly) evening in the countryside away from any lights, but my favorite image of the night ended up being the aurora just casually, majestically, filling the sky above our homes

Image of the front entrance of a house, showing bright northern lights above: a green layer of aurora beneath a red aurora

I think about this plot all the time, and especially with respect to things like autism. If you’d lived in 1940 and had access to this data, would it feel like an “epidemic” of left-handedness?

Classic plot of the occurrence of left handedness by birth year. The plot starts at 5% in 1890, dips to near 3-4% around 1910 then rises until leveling off at 12% in 1960 onward

The Summer I Misplaced the Moon... #TSITP 🔭 Watching the finale last night I happened to notice a few oddities regarding the placement of the Moon, so I wrote a quick set of review slides to work through with my intro astro class ; ) (other than times/locations, this should be spoiler free)

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Our (Faherty et al) newly published JWST detection of silane (SiH4) in the brown dwarf W1534 (aka "The Accident")! This molecule isn't seen on Jupiter because it's removed by deep silicate clouds, but unusual chemical properties of W1534 allow SiH4 to be mixed up into the visible atmosphere 🔭 🧪

NASA Study: Celestial ‘Accident’ Sheds Light on Jupiter, Saturn Riddle

An unusual cosmic object is helping scientists better understand the chemistry hidden deep in Jupiter and Saturn’s atmospheres — and potentially those of exoplanets.

jpl.nasa.gov