Webb finds signs of planetary collisions and strong evidence of an atmosphere on a lava world

ScienceDaily describes Webb observations of 21 rare “extreme debris disks” around young stars, whose dust can reveal the scale and intensity of planetary collisions. It also says Webb found strong evidence of an atmosphere on HD 3167 b, a lava world orbiting its star every 24 hours under extreme heat. That finding could help scientists understand how rocky planets retain atmospheres and what the young, molten Earth may once have looked like.