Sens. Tom Udall (D-N.M.) and Jerry Moran (R-Kan.) as well as chairmen and ranking members of the House Oversight and Government Reform Committee and the Senate Homeland Security and Governmental Affairs Committee signed the letter.
The lawmakers asked NASA to determine IT systems for critical missions, hardware and infrastructure and programming languages currently in use at the agency as well as to provide information on its IT workforce recruitment and compensation systems.
They expect to receive a response from NASA by Jan. 29, 2016.
AÂ Government Accountability Office study found that three quarters of the $80-billion federal IT budget in fiscal 2015 were spent on programs to run and maintain legacy infrastructure.