Dinah MacQuarie

Dinah MacQuarie appears as one of the main protagonists in Parts 1 and 2 of Seveneves. When she is first introduced, Dinah runs a robot "shop" on the International Space Station (ISS/"Izzy"), and has a background in mining, engineering, and computer science. She is tough, sexy, fiercely intelligent.

Dinah is the daughter of Rufus MacQuarie, a mine owner and underground survivor on Old Earth whose descendants are Diggers. In Part 1, Rufus sends Dinah a message by Morse Code to inform her of the fragmentation of the moon. Soon thereafter, once the impact of this event is revealed, Dinah's role on the ISS becomes more central to the plot.

Dinah works for entrepreneur, founder and chairman of Arjuna Expeditions, Sean Probst. After the Cloud Ark project is underway, Sean Probst arrives on Izzy and relates a new mission: he intends to capture the comet called Greg's Skeleton in order...