According to one theory, the moon formed when a Mars-sized chunk of rock collided with Earth. After the moon coalesced out of the debris from that impact, it was much closer to Earth than it is today. This idea is taken to it's fanciful limit in Italo Calvino's story "The Distance of the Moon" (from his collection Cosmicomics, translated by William Weaver). The story, narrated by a character with the impossible-to-pronounce name Qfwfq, tells of a strange crew who jump between Earth and moon, and sometimes hover in the nether reaches of gravity between the two.
This reading was part of a live event hosted by Radiolab and Selected Shorts, and it originally aired on WNYC’s and PRI’s SELECTED SHORTS, paired with a Ray Bradbury classic, “All Summer in a Day,” read by musical theater star Michael Cerveris. Hosted by BD Wong, you can listen to the full show here.