What NASA small space telescope was launched on January 11, 2026, to study exoplanet atmospheres?

The small space telescope (Deals) launched by NASA on January 11, 2026, to investigate the atmospheres of exoplanets is named Pandora. This mission represents a significant step in our quest to understand worlds beyond our solar system. Pandora's primary goal is to provide detailed insights into the chemical composition of exoplanet atmospheres, especially looking for elements and compounds like water vapor, clouds, and hazes.

Pandora utilizes a technique called transit spectroscopy, observing exoplanets as they pass in front of their host stars. As starlight filters through a planet's atmosphere during a transit, certain wavelengths of light are absorbed, leaving a unique chemical fingerprint. A key challenge in this research is distinguishing between signals from the exoplanet's atmosphere and "noise" created by the star itself, such as star spots or flares. Pandora addresses this by making simultaneous observations in both visible and near-infrared light over extended periods, allowing scientists to disentangle the stellar and planetary signals more accurately.

This innovative small satellite is part of NASA's Astrophysics Pioneers program, which supports compelling, lower-cost missions. Pandora’s data will complement observations from larger observatories like the James Webb Space Telescope, helping astronomers interpret results with greater confidence and prioritize targets for future, more in-depth studies. By refining our understanding of exoplanet atmospheres and their host stars, Pandora is contributing valuable knowledge in the ongoing search for potentially habitable worlds.