


Will Kinney
56K posts

@WKCosmo
Cosmologist, physicist, dirtbag mountain biker, expat Montanan, Copernican extremist. Part of the problem.






Startup plans to sell redirected sunlight from space Reflect Orbital, a startup based in California, wants to offer sunlight on demand. They plan on deploying satellites with mirrors that redirect sunlight to whomever is willing to pay for it – the regions could even be on the night-side of the planet. The satellites would be placed in low Earth orbit and reflect light onto areas a few kilometres across. The company expects that the resulting brightness would be comparable to or somewhat above moonlight. This is not much, but it would allow solar arrays to operate after sunset. The company plans a first demonstration mission in 2026 and envisions scaling to thousands of satellites. They project customer costs at about $5,000 per hour for illumination.


Playing around with Claude AI. Wrote this nice interactive nonlinear double-pendulum simulation in about twenty minutes with a few back-and-forth iterations with the AI. Pretty damn cool.








After almost twenty years on the platform, EFF is logging off of X. This isn’t a decision we made lightly, but it might be overdue. 🧵(1/5)