JWST Pinpoints Exploded Star's Origin
Using the James Webb Space Telescope, NASA scientists have located the precise former location of a star that exploded as a supernova in the galaxy NGC 1637. The observations revealed that the progenitor star was surrounded by significant amounts of carbon-rich dust before its detonation. This finding helps refine scientific models of stellar evolution and the chemical enrichment of galaxies.
- The light from the supernova, designated SN 2025pht, was first detected on Earth on June 29, 2025, though the star actually exploded 40 million years ago in the galaxy NGC 1637. - This discovery provides a direct solution to the long-standing "red supergiant problem" in astrophysics, where scientists had previously struggled to find this type of star undergoing a supernova, despite theoretical predictions. - The research team was led by Charlie Kilpatrick of Northwestern University, who utilized archival images from both the Hubble and Webb telescopes to locate the progenitor star before it exploded. - Northrop Grumman served as the primary industrial partner for the JWST, a project expected to cost NASA $9.7 billion over 24 years, with the European and Canadian space agencies contributing an additional estimated €700 million and CA$200 million respectively. - Technology developed to precisely measure JWST's mirrors has been adapted for medical use, leading to advancements in LASIK eye surgery; companies like Johnson & Johnson Vision now use this spinoff technology in their iDesign Refractive Studio platform. - For professionals in the field, the median annual wage for astronomers was $132,170 as of May 2024, with employment for physicists and astronomers projected to grow 4% between 2024 and 2034.
