James Webb to reveal unnatural activities on exoplanets.
One of the targets Webb will study is the well-known, giant ring of dust and planetesimals orbiting a young star called HR 4796A. This Hubble Space Telescope photo shows a vast, complex dust structure, about 150 billion miles across, enveloping the young star HR 4796A. (The light from HR 4796A and its binary companion, HR 4796B, have been blocked to reveal the much dimmer dust structure.) A bright, narrow inner ring of dust encircling the star may have been corralled by the gravitational pull of an unseen giant planet. Credits: NASA, ESA, and G. Schneider (University of Arizona)
The primary mission of James Webb was to find more planets like Earth accurately.
Unnatural Activity on One of the Exoplanets:
How Do We Find Exoplanets?