Asteroid 21 Lutetia, imaged by the ESA’s Rosetta spacecraft in July 2010 (Credit: ESA 2010 MPS for OSIRIS Team MPS/UPD/LAM/IAA/RSSD/INTA/UPM/DASP/IDA)

Asteroid 21 Lutetia, imaged by the ESA’s Rosetta spacecraft in July 2010 (Credit: ESA 2010 MPS for OSIRIS Team MPS/UPD/LAM/IAA/RSSD/INTA/UPM/DASP/IDA)