Post category:Astro Physics Post comments:0 Comments First artificial satellite was launched on——– A. 4 Oct 1957 B. 4 Nov 1957 C. 4 Dec 1957 D. None of these Read more articles Previous PostWhich of the following planets has maximum number of Satellites. Next PostA black hole has a very strong _______? You Might Also Like A black hole has a very strong _______? February 13, 2022 The Building block Of the universe is …. February 18, 2022 A black hole has a very strong ……. February 22, 2022 The Great Spot is on the planet ______. March 9, 2022 In general, Comets have _____ orbits. May 25, 2021 Which instrument is used for viewing the sun? June 11, 2021 Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment. Δ