What technology are scientists using to search for other planets? how are they using this technology to identify other planets?

They use radiometry and pyrometry

NASA uses the Transiting Exoplanet Survey Satelite (TESS) telescope that employes this technology

This telescope measures the brightness/luminosity of stars. When this brightness drops regularly, every more or less in the same number of years, then there is the likelihood of a planet orbiting the star. The dip in brightness of the star is directly proportional to the size of the planet and the distance between the star and the orbiting planet.

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

label a cell membrane

label b cytoplasm

label c ribosomes

label d dna

the membrane forms the outside of the cell

cytoplasm is the liquid within

ribosomes are the components within that distribute rna

the dna is the genetic make-up