For updates and to chat about Mars and/ or Perseverance, head over to this thread!
Speaking of which, check out Space.com Senior Writer Chelsea Gohd's new song - made with audio from Mars - at this thread!
Citizen scientists create 3D map of brown dwarfs in our sun's neighborhood
They mention the data came from the Spitzer space telescope. This was the best telescope used for mapping cooler objects, IIRC, as it was designed to look into the IR band, much more so than, say, the Hubble space telescope