What does HSM stand for?
HSM stands for "Hubble Servicing Mission"
How to abbreviate "Hubble Servicing Mission"?
"Hubble Servicing Mission" can be abbreviated as HSM
What is the meaning of HSM abbreviation?
The meaning of HSM abbreviation is "Hubble Servicing Mission"
What does HSM mean?
HSM as abbreviation means "Hubble Servicing Mission"
