1 00:00:02,240 --> 00:00:09,980 Particles or droplets suspended in the sky are called aerosols. 2 00:00:10,000 --> 00:00:14,980 They influence cloud formation, climate, and people's health. 3 00:00:21,440 --> 00:00:16,980 Some come from these. 4 00:00:21,460 --> 00:00:22,570 NASA's PACE mission 5 00:00:22,590 --> 00:00:25,270 will help scientists study aerosols,