Event horizon telescope  :  the black hole seen round the world : hearing before the Committee on Science, Space, and Technology, House of Representatives, One Hundred Sixteenth Congress, first session, June 12, 2019. 
 Black hole seen round the world 

 - 1 online resource (iii, 77 pages) :  illustrations 
<br/><br/> "Serial no. 116-19."  CRDP Program record. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telescopes--United States.<br/>Black holes (Astronomy)
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Outer space--Exploration.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Legislative hearings.
<br/><br/><label>LC Class. No.: </label>KF27  / .S39 2019e 
<br/><br/><label>GPO Item No.: </label>1025-A-03 (online) 
<br/><br/><label>Gov. Doc. Class. No.: </label>Y 4.SCI 2:116-19 
<br/><br/><label>Report. No.: </label>Serial no. 116-19 (United States. Congress. House. Committee on Science, Space, and Technology (2011))