<prompt> Bo-rasaense ba lumela eng ka taba e lefifi?nan  <response>: Instruction in English: What do scientists believe about dark matter? . Response in English: Scientists believe that dark matter is an unseen and unidentified type of substance that makes up approximately 27 of the universes total mass-energy density. It has been postulated to explain certain astronomical observations, such as the rotational speeds of galaxies, which cannot be accounted for by the visible matter alone. While its existence has not been directly observed, its effects on visible matter suggest that it interacts with other matter through gravity. Dark matter is one of the greatest mysteries in modern astrophysics, and scientists are actively working to better understand its nature and behavior through various experiments and observations. . Response in Sesotho: Bo-rasaense ba lumela hore ntho e lefifi ke mofuta o sa bonahaleng le o sa tsejoeng o etsang hoo e ka bang 27 ea bokahohle bo bongata ba matla a mangata. Ho nile ha boleloa hore e hlalose lintho tse itseng tse hlokomelisoang ke linaleli, tse kang lebelo la ho potoloha ha lihlopha tsa linaleli, tse ke keng tsa hlalosoa ke ntho e bonahalang feela. Le hoja boteng ba eona bo e-so bonoe ka ho toba, liphello tsa eona linthong tse bonahalang li fana ka maikutlo a hore e sebelisana le lintho tse ling ka matla a khoheli. Taba e lefifi ke e ngoe ea liphiri tse kholo ho astrophysics ea sejoale-joale, me bo-ramahlale ba sebetsa ka mafolofolo ho utloisisa sebopeho le boitšoaro ba eona ka liteko tse fapaneng le litebello. 