Niara Isley says there are people on Mars
"Mars has people there"
at minute 32:10 https://www.youtube.com/watch?v=EP-5tLp5xv8&t=1902s
"And it's occupied by different factions. Our human faction there is just one."
at minute 32:20 https://www.youtube.com/watch?v=EP-5tLp5xv8&t=1940s
"Q: You worked on the dig on Mars?
A: Yes"
at minute 33:31 https://www.youtube.com/watch?v=EP-5tLp5xv8&t=2011s