UPSC Prelims GS - 2016

Question 72
DIFFICULTCorrect: +2Incorrect: -2

What is ‘Greased Lightning-10 (GL-10)’, recently in the news?

    a
    Electric plane tested by NASA
    b
    Solar-powered twoseater aircraft designed by Japan
    c
    Space observatory launched by China
    d
    Reusable rocket designed by ISRO