AIR & SPACE MAGAZINE Crescent Earth A comet-bound spacecraft swings past its home planet. November 14, 2007 A comet-bound spacecraft swings past its home planet. AirSpaceMag.com Get the latest stories in your inbox every weekday.
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/EarthLimbInColor_H.jpg)