"Thermal Electron Probe". NASA. 28 October 2021. Retrieved 9 November 2021. This article incorporates text from this source, which is in the public domain.
"Thermal Ion Probe". NASA. 28 October 2021. Retrieved 9 November 2021. This article incorporates text from this source, which is in the public domain.
planet4589.org
"Launch Log". Jonathan's Space Report. 21 July 2021. Retrieved 9 November 2021.