NASA astronaut and Expedition 62 Flight Engineer Jessica Meir swaps media that nourishes bone samples inside the Life Science Glovebox located in JAXA's (Japan Aerospace Exploration Agency) Kibo laboratory module. The experiment compares the microgravity-exposed samples to magnetically levitated samples on Earth for insights into bone ailments such as osteoporosis. Credit: Courtesy of NASA

Maine astronauts Chris Cassidy and Jessica Meir answer questions from the International Space Station.

Right now, a third of the people in space are Mainers. Cassidy is a York native and Meir grew up in Caribou.