James Webb did the unthinkable and measured the temperature of a rocky exoplanet

Scientists used the James Webb to measure the temperatures of an exoplanet, revolutionizing how we search for planets that can sustain life.

Image: NASA, ESA, CSA, J. Olmsted , T. P. Greene , T. Bell , E. Ducrot , P. Lagage

Using MIRI, the team observed Trappist-1 b’s thermal emission – heat energy that is given off as infrared light. This discovery is extremely notable because it is the first time that we have detected the light off of an exoplanet the same size and temperature as the rocky planets that are found within our own solar system. By using Webb to measure an exoplanet’s temperature, astronomers have opened new doors to how we explore the planets we discover in our universe.

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