A multiple near-earth asteroid sample return mission called Hera.
by Sears, D. W. G.; Brownlee, D. E.; Pieters, C.; Lindstrom, M.; Britt, D.; Clark, B. C.; Gefert, L.; Gorevan, S.; Preble, J. C.
by Sears, D. W. G.; Brownlee, D. E.; Pieters, C.; Lindstrom, M.; Britt, D.; Clark, B. C.; Gefert, L.; Gorevan, S.; Preble, J. C.