Som ET - 35 - Universe - Webb finds star duo forms ‘fingerprint’ in space

Shells of cosmic dust created by the interaction of binary stars appear like tree rings around Wolf-Rayet 140. The remarkable regularity of the shells’ spacing indicates that they form like clockwork during the stars’ eight-year orbit cycle, when the two members of the binary make their closest approach to one another.

Audio: Som ET - 35 - Universe

NASA/ESA Image: https://cdn.esawebb.org/archives/images/screen/WR140a.jpg

Credit: NASA, ESA, CSA, STScI, JPL-Caltech

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