"Red Planet" by Alvvays is a song about longing and regret in the aftermath of a failed relationship. The lyrics suggest that the narrator has been stranded on Mars for almost twenty years, possibly a metaphor for feeling isolated and alone in their current state of mind. The lack of tears on the red planet symbolizes emotional detachment and the inability to fully express one's feelings.

The first verse conveys a sense of nostalgia and yearning for lost love. The narrator dreams of the past and holds onto memories of a time when they were still able to hold their significant other. However, now they are left alone, collecting the rubble of their broken relationship.

The chorus suggests that the narrator has been waiting for their lover to come back to them, but deep down they know it's unlikely to happen. They feel delusional for holding onto hope. The line "painted all these pictures of Earth" could indicate that they have been trying to recreate a sense of home and belonging in their mind, but it's not the same as being on Earth.

The second verse describes how the narrator and their lover initially met and how they were drawn to each other. But now, it seems like they didn't really know each other at all. The lines about junipers in the spring growing and Jupiter in the fall not drawing a reaction could represent the ebb and flow of their relationship.

The outro revisits the theme of waiting and painting pictures of Earth, but ultimately realizing that it's all just delusional and unusual to the person they were waiting for. The song ends on a somber note, emphasizing the sorrow and loneliness that the narrator is experiencing.