I imagine playgrounds are very different on Mars. One third the gravity changes how fast swings swing, how much effort it takes to get up on the monkey bars, and how high you can jump from without getting hurt. Maida was too old for playgrounds when she got to Earth, but imagine having to relearn all your habits and assumptions around basic physics.

↓ Transcript
Panel 1: Narrator: "He didn't say much. He almost never smiled. Was it everything he'd been through? I still only knew the 'short version' of the story." Flashback to when Maida and Ibrahim were kids on Mars. They're both very young. Maida pushes her baby brother on a swing in a playground, with other young kids playing in the background.
Panel 2: Narrator: "I could only assume there was more to his time among the comets than I knew. Did I seem as changed to him as he did to me?" Another scene on Mars. The whole family sits around the dinner table eating injera and chicken, including Maida, Ibrahim, their mom, aunt, cousin, and dad.
Panel 3: Narrator: "From his point of view, was I loud, pushy, and mean, like I thought every Earther was?" Maida, Ibrahim, and their cousin pick up food from a busy outdoor market.
Panel 4: Narrator: "Was it even possible for us to be a family again, after we'd lost so much?" Maida, a little older but still not her current age, sits inside looking out a window with snowflakes coming down outside, projecting melancholy. Ibrahim is walking up a staircase to see what she's doing.