Exoplanet-hunting satellite arrives in Florida for April launch – Astronomy Now
Scientists hope to find thousands of exoplanets with TESS, including some rocky worlds the size of Earth. TESS will identify prime targets for follow-up observations by the James Webb Space Telescope set for launch next year. Webb’s cameras and spectrometers will be capable of measuring the chemical make-up of the planets’ atmospheres, telling astronomers which of the worlds might be habitable.