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Webb telescope just snapped direct image of worlds many light-years away

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James Webb Space Telescope has captured four planets in the stellar system HR 8799 .

These large, gaseous worlds are located 130 light-years away in the Milky Way galaxy.

Viewing these worlds also revealed major parts of their composition, and how they likely formed.

"Our hope with this kind of research is to understand our own solar system, life, and ourselves," an astronomer said.

The instruments can decipher what molecules (such as water, carbon dioxide, and methane) exist in the atmospheres of distant exoplanets — be they gas giants or smaller rocky worlds. Webb looks at exoplanets in the Milky Way galaxy. Who knows what we'll find? "We might learn things we never thought about," Mercedes López-Morales , an exoplanet researcher and astrophysicist at the Center for Astrophysics-Harvard & Smithsonian , previously told Mashable . Topics NASA .