𝗣𝗹𝗲𝗮𝘀𝗲 𝗷𝗼𝗶𝗻 𝘂𝘀 𝗶𝗻 𝗰𝗲𝗹𝗲𝗯𝗿𝗮𝘁𝗶𝗻𝗴 𝘁𝗵𝗲 𝗹𝗮𝘂𝗻𝗰𝗵 𝗼𝗳 𝗧𝗛𝗘 𝗜𝗡𝗩𝗜𝗦𝗜𝗕𝗟𝗘 𝗖𝗥𝗘𝗔𝗧𝗜𝗢𝗡 𝘄𝗿𝗶𝘁𝘁𝗲𝗻 𝗯𝘆 𝗦𝗵𝘂𝘃𝗮𝗱𝗶𝗽 𝗚𝗮𝗻𝗴𝘂𝗹𝗶. 𝗗𝗮𝘁𝗲: March 14, 2020 (Birthday of Sir Albert Einstein) 𝗧𝗶𝗺𝗲: From 11 AM 𝗟𝗼𝗰𝗮𝘁𝗶𝗼𝗻: Online event - Organised by Physics My love & PHYSICSworld Database facebook pages and PHYSICSworld Database facebook group. 𝗕𝗼𝗼𝗸 𝗱𝗲𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻: All the stars, planets, galaxies and other visible objects make up only about four percent of our universe. The other ninety six percent is made of invisible stuff. We cannot see or detect them but know about their existence. This invisible area of the universe is explained in this book. This book will give you a transparent idea and knowledge about this deep part of our universe. The subject matter is presented in a simple way, step by step with sufficient illustrations. This book may be of interest to students, teachers, as well as general readers (without a science background) who are interested in astronomy. 𝗣𝘂𝗯𝗹𝗶𝘀𝗵𝗲𝗿: Notionpress (India) & amazon KDP (abroad) 𝗜𝗦𝗕𝗡 : 9789353917791 (allotted by Raja Rammohun Roy National Agency for ISBN) 𝗬𝗼𝘂 𝘄𝗶𝗹𝗹 𝗴𝗲𝘁 𝗮𝗹𝗹 𝘁𝗵𝗲 𝗹𝗶𝗻𝗸𝘀 𝘄𝗵𝗲𝗿𝗲 𝘆𝗼𝘂 𝗰𝗮𝗻 𝗯𝘂𝘆 𝘁𝗵𝗶𝘀 𝗯𝗼𝗼𝗸. 𝗬𝗼𝘂 𝗰𝗮𝗻 𝗽𝗼𝘀𝘁 𝘆𝗼𝘂𝗿 𝘁𝗵𝗼𝘂𝗴𝗵𝘁𝘀 𝗮𝗯𝗼𝘂𝘁 𝘁𝗵𝗶𝘀 𝗯𝗼𝗼𝗸 𝗮𝘁 𝘁𝗵𝗲 𝘁𝗶𝗺𝗲 𝗼𝗳 𝗕𝗼𝗼𝗸 𝗹𝗮𝘂𝗻𝗰𝗵.