You can read about their formation on several publications. For instance: https://bigthink.com/starts-with-a-bang/james-webb-spikes/ https://bigthink.com/starts

You can read about their formation on several publications. For instance: https://bigthink.com/starts-with-a-bang/james-webb-spikes/ https://bigthink.com/starts-with-a-bang/james-webb-spikes/