For a deeper look into the history and themes of real-world space competition that inspired titles like this, check out this breakdown:
“Greg: No. Don't give him the banana. That's what he wants.” TV Tropes [S1E28] Space Race
The story begins with Pearl becoming frustrated by Greg’s "unscientific" attempt to build a spaceship for Steven. Taking over the project, Pearl enlists Steven to help her build a legitimate rocket in a barn using old van parts. However, Pearl’s desire to return to the stars quickly borders on obsession, leading to a dangerous launch that forces Steven to choose between his mentor’s dream and their safety. For a deeper look into the history and