NASA's next four large telescopes :  hearing before the Subcommittee on Space, Committee on Science, Space, and Technology, House of Representatives, One Hundred Fifteenth Congress, first session, December 6, 2017. 
 National Aeronautics and Space Administration's next four large telescopes 

 - 1 online resource (iv, 121 pages) :  illustrations 
<br/><br/> "Serial no. 115-41."  CRDP Program record. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Corporate Names: </label><br/>United States. National Aeronautics and Space Administration. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telescopes--Technological innovations--United States.<br/>Telescopes--United States.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Legislative hearings.
<br/><br/><label>LC Class. No.: </label>KF27  / .S3995 2017i 
<br/><br/><label>GPO Item No.: </label>1025-A-03 (online) 
<br/><br/><label>Gov. Doc. Class. No.: </label>Y 4.SCI 2:115-41 
<br/><br/><label>Report. No.: </label>Serial no. 115-41 (United States. Congress. House. Committee on Science, Space, and Technololgy (2011))