After several delays there is currently no known date for when the telescope will go into operation. The Thirty Metre Telescope (TMT) will be the one of the new generation of Extremely Large Telescopes (telescopes with more than 20 metres of aperture). With its diameter of 30 metres there are a lot of observations that can be made, such as seeing the earliest stars and galaxies in the universe, resolving galaxies within 33 million light years into single stars, exoplanet discovery and characterisation and much more.