Spacewalker (bottom left) Luca Parmitano works on get-ahead tasks after completing thermal repairs on the Alpha Magnetic Spectrometer, a dark matter and antimatter detector.
iss061e142299 (Jan. 25, 2020) — Spacewalker (bottom left) Luca Parmitano works on get-ahead tasks after completing thermal repairs on the Alpha Magnetic Spectrometer, a dark matter and antimatter detector.