An image of the binary system WR 140, captured by the NASA/ESA/CSA James Webb Space Telescope in July 2022, has baffled astronomers worldwide — even triggering a speculation that it might be evidence of an alien megastructure. But in two new studies, astronomers explain that the 17 concentric rings around WR 140 are actually a series of dust shells created by the interaction between a pair of hot stars. This Webb/MIRI image shows the binary...
