The E-ELT can tackle the most important scientific challenges of our time, and aim for variety of notable firsts, together with pursuit down Earth-like planets around different stars within the "habitable zones" wherever life may exist — one amongst the Holy Grails of recent experimental uranology. it'll conjointly perform "stellar archaeology" in close galaxies, also as build basic contributions to cosmology by mensuration the properties of the primary stars and galaxies and searching the character of matter and dark energy. On prime of this astronomers are coming up with for the sudden — new and unpredictable queries can sure as shooting arise from the new discoveries created with the E-ELT.