James Webb Telescope captures auroras on Jupiter
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Webb Space Telescope reveals a surprisingly clear atmosphere on planet TOI-421 b, helping scientists understand the evolution of sub-Neptunes.
The way that Hubble images are produced is similar to how the James Webb Space Telescope uses filters and combines these to create stunning pictures of otherwise invisible objects, a process which requires both scientific knowledge and a degree of artistic flair from the image processors.
Astronomers didn’t even know sub-Neptunes existed until NASA’s Kepler mission uncovered them over the past decade. Although a few times larger than Earth, they are far smaller than gas giants and usually cooler than hot Jupiters, making them difficult to study with earlier telescopes.
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