Each of Webb’s four instruments is like a Swiss army knife of more specialized components, with multiple ways of observing (observing modes). Although some instruments are more suitable than others ...

Hubble Space Telescope astronomers, studying the northern hemisphere field from the Great Observatories Origins Deep Survey (GOODS), have measured the distance to the farthest galaxy ever seen. The ...

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This exoplanetary encyclopedia — continuously updated, with more than 6,000 entries — combines interactive 3D models and detailed data on all confirmed exoplanets. When you select a planet’s name, see ...