While the powerful webb james are expected to be orbited around the sun (it could be done by October 2021), the tess space telescope has reached an important milestone, higher than any more rosy expectation. More than 2,200 planets are identified around other star systems, and all this happened in only 2 years after its use. It gave news of the nasa herself a few days ago, stating that it is only the beginning of an increasingly profitable journey.

The wide range of observation offered by tess and the number of identified exoplanets is better described in official document (source) in which the results of the main mission were cataloged. The transiting exoplanet survey satellite (tess) was launched in April 2018 with a target of duration of the main mission fixed at 2 years. Tess is super sensitive and can accurately identify 0.1% or even less brightness drops.

It should be said that this method allows only a small percentage of celestial bodies to be identified, so the real numbers could be far higher. Of these, for now the nature of exoplanet has been confirmed for about 120 celestial bodies, but the work is still long and further in-depth analysis will be necessary.