The Atlantis CubeSat, part of the QB50 CubeSat initiative, re-entered the atmosphere on March 28, 2018 after less than one year in Low Earth Orbit, becoming the second of the QB50 series to decay from orbit after collecting data from the seldom-measured lower thermosphere.

The Columbia Sat CubeSat, part of the QB50 CubeSat initiative, re-entered the atmosphere on March 7, 2018 after less than one year in Low Earth Orbit, becoming the first of the QB50 series to decay from orbit after collecting data from the seldom-measured lower thermosphere.