Juno just completed its eighth close visit to the solar system's largest planet, and it sent back some gorgeous images.
Ms Koch had already carried out four spacewalks but it was the first such mission for Ms Meir, who became the 15th woman to walk in...
A NASA astronaut making history most recently called Livingston, Montana home - before she moved to space.
Moving at about 22,500 miles per hour, the asteroid is expected to brush past Earth at approximately 6:53 p.m. ET on Monday.