Mission Plato: Europe's New Planet Hunter is Ready for Space
The European Space Agency (ESA) has issued a special invitation. On May 20, 2026, journalists will be able to see the new "Plato" satellite up close for the last time. The satellite is currently located in a special cleanroom before it begins its long journey into space.
Plato is a state-of-the-art "planet hunter." Its name is an abbreviation for "Planetary Transits and Oscillations of stars." The main task of this mission is to find planets outside our solar system. Planets that are similar to Earth and where life might be possible are of particular interest.
To discover these distant worlds, the satellite uses many high-precision cameras. It observes the light from thousands of stars over a long period. When a planet passes in front of a star, the star's light becomes slightly dimmer for a short time. Through these small changes, scientists can accurately calculate the size and orbit of the planets.
Before the satellite launches, it must be absolutely clean. That is why it is kept in a so-called cleanroom. Even a tiny speck of dust could damage the sensitive instruments in space. The appointment in May is therefore the last opportunity to admire this impressive technology on Earth.
The Plato mission is an important step for European space research. With the new data, astronomers hope to learn more about the formation of planets and the search for a "second Earth." After the presentation, the satellite will be prepared for transport to the launch site.