James Webb Space Telescope: How, When and Why Its Launch

Rehearsals and training at the Space Telescope Science Institute are essential to ensure that the assembly process runs smoothly and that any unexpected anomalies can be addressed. NASA / STScI, CC BY After the tests came the rehearsals. The telescope will be controlled remotely by commands sent over a radio …

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Ceres in opposition on November 27

See bigger. | Ceres in opposition means that he is facing the sun in our sky. This view shows where the planetary bodies will be located in our solar system on November 27, 2021. Image via Dominic Ford / Ceres was the first asteroid discovered in 1801, then reclassified …

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