John Spencer
@jspencer.bsky.social
Medical geographer working in global health. I make maps. One day I may post.
Been around a few places: Univ. of North Carolina, St. Jude Children’s Research Hospital, Abt Global.
Chapel Hill, NC
Been around a few places: Univ. of North Carolina, St. Jude Children’s Research Hospital, Abt Global.
Chapel Hill, NC
I’ve seen a lot of cool satellite imagery in my day but this one is among the few that made me say “Wow!” out loud. I love this.
This is wild! Here is a mosaic image combining satellite passes from NOAA 21, Suomi NPP, and NOAA 20 showing the auroral oval very extended during the geomagnetic storm earlier this week. I have annotated where the typical auroral oval rests over the north geomagnetic pole.
November 15, 2025 at 6:47 PM
I’ve seen a lot of cool satellite imagery in my day but this one is among the few that made me say “Wow!” out loud. I love this.
🌞⚡ “How’s solar working out for you?” I get this question from friends sometimes. I’ve had solar panels on my roof since May 2023 + an EV since Dec 2022, I thought I’d post some data in case it would be helpful for anyone considering solar or an EV (or both). 🧵 (1/12) #solarpanels #EV #homesolar
January 2, 2025 at 6:48 PM
🌞⚡ “How’s solar working out for you?” I get this question from friends sometimes. I’ve had solar panels on my roof since May 2023 + an EV since Dec 2022, I thought I’d post some data in case it would be helpful for anyone considering solar or an EV (or both). 🧵 (1/12) #solarpanels #EV #homesolar
A month ago the moon stepped in front of the sun and was all “who’s Mr. Big shot now?” The sun, as always gets the last laugh and says “oh yeah?” and shoots out a bunch of energy giving us this. #aurora #northcarolina
May 11, 2024 at 8:07 AM
A month ago the moon stepped in front of the sun and was all “who’s Mr. Big shot now?” The sun, as always gets the last laugh and says “oh yeah?” and shoots out a bunch of energy giving us this. #aurora #northcarolina