It Seems Impossible, But Somehow This Planet Survived its Star's Red Giant Phase

Astronomers working with TESS (Transiting Exoplanet Survey Satellite) data have found a planet where it shouldn’t be: in the space recently filled by its host star when it was a red giant. TESS uses Asteroseismology to examine stars. It measures the tiny oscillations in a star that gives clues to its interior structure. These clues …