Funny observation from driving across nearly half of Canada in the last few days: in Regina it was -25C, in Calgary/Banff it was -10C, and around Vancouver and Victoria it's been 0 to 5C. And everyone wears the same clothes (big coat, hat, scarf, gloves) in each of these places, because it's the typical cold winter temperatures. Acclimatization is impressive!

#ProfSamLectureTour

DarkSky International just posted their position letter on Reflect Orbital. It is direct and to the point:

"Based on current scientific evidence, DarkSky does not see a viable pathway for such systems to align with responsible lighting principles or with our mission to protect natural darkness. These systems would introduce significant ecological, human health, safety, and astronomical risks at a global scale."

Read their letter and add your name here:

Just a moment...

(darksky.org)

The very fluffy dogs are very happy about more snow. The goats are very happy to have a barn to snuggle in and will avoid the snow, thank you very much. (The chickens won't even consider coming out of the coop. Fair.)

The blizzard is going to start with a few hours of "freezing rain mixed with snow." It just keeps getting better and better! Going to try to get a lot done outside before it gets terrible... (edited to add a screenshot of the gross mess that's coming)

Well, all the assorted yellow warnings coalesced into an orange blizzard warning. Fuck.

Jonathan's traffic report for yesterday included the 35 days since our previous subcommittee meeting. A few highlights:

There were 42 launches in the last 35 days, 16 of which were Starlink.

There were 617 new objects catalogued in orbit, 455 of them Starlinks (all V2 "mini", which are like 800kg, scares me that they consider that "mini"). The next largest batch addition after Starlink was 32 of China's Guowang megaconstellation.

One of my million meetings yesterday was the space debris subcommittee of the AAS Committee on the Protection of Astronomy and the Space Environment (yeah, it's a long name). But the very very best part of that meeting is always getting the orbital traffic report from Jonathan McDowell @planet4589.bsky.social

He has been writing Jonathan's Space Report for decades with details on what has launched and reentered and what is happening in orbit around Earth. https://planet4589.org/space/jsr/jsr.html

Oh apparently this awful mess happening today is called an "Alberta Clipper"

Which invites the age-old Canadian joke I've shared way too many times: Why is it so windy in Saskatchewan?

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Because Alberta blows and Manitoba sucks!

WHAT is even happening with the weather today yikes

When I went out to the barn just now it looked like spring thaw. It's +2C, there are giant puddles, and in a lot of places (like the entire driveway) there's a layer of water on top of ice. It's about to drop back to way below freezing and then we're supposed to get 15 cm of snow tomorrow.

Wheeeeee

That document where SpaceX admits to dropping potentially lethal debris on Canada is still publicly available on their website, which is also kind of wild: https://starlink.com/public-files/Starlink_Approach_to_Satellite_Demisability.pdf

They seem to think it's just a whoopsie and no big deal. But...it's actually a violation of Canadian airspace! And also, terrifying!

SpaceX is scary.