The explainer:  dyson spheres. 

 - Asia Edition. 
 - Singapore:  JSIM Education,  May 2022. 
 - 90-91 pages. 
 - BBC Earth.  No. 6.  Do you know?  Vol. 14. .
<br/><br/><label>ISSN: </label>2737-5560 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nuclear.
<br/><br/><label>Dewey Class. No.: </label>BBC Earth D995 May 2022