The astronauts and cosmonauts walk on Mars as if they were on Earth, when in fact, Mars's gravity is just 0.375 that of Earth. They should be almost bouncing when they walk.
At minute 48:53 one can see an Apple iPod which was first announced on October 23rd 2001 whereas this episode takes place in 1994, 7 years before it's release. One could argue, that the technological advances were faster in for all mankind as Apple Newton like devices were used for video calls in this season but the Newton at least was already published by then, albeit without camera and color display.
When Bill McCann is storming through the hallway to Margo's office, a female extra holding a black portfolio can be seen on screen right waiting for her cue to pass in front of Bill.