Perpendicular Planets and a Chip Off the Old Moon

Published: Nov. 17, 2021, 11 a.m.

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We explore an exoplanet system where the orbits of the planets are at right angles to each other. A chunk of rock trailing the Earth around the Sun may be a chunk of the Moon, and we take a look at some of the more interesting ways of getting into space and traveling long distances once we're there.

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