NASA's Chandra X-ray spacecraft finds 'danger zones' around stars 

 Using NASA's Chandra spacecraft, astronomers have found "danger zones" for worlds where planet-birthing disks are blasted with high-energy radiation from massive young stars and rapidly disintegrate. 

https://cdn.mos.cms.futurecdn.net/WfFDTYv6dEDt5WZsRL77Qb.png

https://www.space.com/chandra-danger-zones-planets-stars