<prompt> Hlalosa mohato o mofubelu oa senatla sa naleli.nan  <response>: Instruction in English: Explain the red giant phase of a star. . Response in English: The red giant phase is one of the stages in the life of a star, where it expands and its outer layers become cooler and redder. This phase occurs when a star has exhausted the supply of hydrogen at its core. At this point, the core of the star will contract due to gravity, causing it to heat up. This causes the outer layers of the star to expand and the stars overall luminosity to increase.As the core continues to contract, the temperature increases until it is hot enough to begin fusing helium into carbon. This generates new energy which slows down the contraction of the core and expansion of the outer layers. As a result, the star becomes stable again at a much larger size than it previously was.Red giants are much larger and more luminous than the star was during its main sequence phase. Eventually, the helium at the core will be exhausted leading to further core contraction and heating. Depending on the size of the star, it may either become a red supergiant or move on to the next stage of its evolution, often becoming a white dwarf.In summary, the red giant phase marks a significant change in a stars life cycle as it runs out of hydrogen fuel, its core contracts, its outer layers expand, and it becomes much brighter than before. . Response in Sesotho: Karolo e khubelu ea setonanahali ke e ngoe ea mekhahlelo ea bophelo ba naleli, moo e atolohang me likarolo tsa eona tse ka ntle li fetoha tse pholileng le tse khubelu. Karolo ena e etsahala ha naleli e felisitse phepelo ea haedrojene khubung ea eona. Mothating ona, khubu ea naleli e tla honyela ka lebaka la matla a khoheli, e leng se etsang hore e chese. Sena se etsa hore likarolo tse ka ntle tsa naleli li atolohe le hore khanya ea naleli ka kakaretso e eketsehe. Ha khubu e ntse e tsoela pele ho honyela, mocheso oa eketseha ho fihlela o chesa hoo o ka qalang ho kopanya helium ho carbon. Sena se hlahisa matla a macha a liehisang ho honyela ha mantlha le ho atolosoa ha likarolo tse kantle. Ka lebaka leo, naleli e fetoha e tsitsitseng hape ka boholo bo boholo ho feta kamoo e neng e le kateng pele. Linatla tse khubelu li kholoanyane ebile li khanya ho feta kamoo naleli e neng e le kateng nakong ea tatellano ea eona e ka sehloohong. Qetellong, helium e bohareng e tla be e felile e lebisang ho honyeng ho eketsehileng ha mantlha le ho futhumatsa. Ho itšetlehile ka boholo ba naleli, e ka na ea e-ba senokoane se sefubelu kapa ea fetela mohatong o latelang oa ho iphetola ha eona, hangata e fetoha setsoantso se sesoeu. Ka bokhutsoane, karolo e khubelu ea tonanahali e tšoaea phetoho e kholo ea potoloho ea bophelo ba naleli ha e felloa ke mafura a haedrojene, likonteraka tsa eona tsa mantlha, likarolo tsa eona tsa kantle li atoloha, me e khanya haholo ho feta pele. 