Group 1 - The article discusses a new type of "light propulsion" flying device, which is a small solar-powered floating apparatus capable of carrying instruments at high altitudes in the atmosphere, paving the way for future climate monitoring and Mars exploration [1][2] - "Light propulsion" generates motion by heating particles suspended in a gas or liquid with light, a principle known for over a century, but practical applications have only recently been explored [1] - A research team from Harvard University designed a new flying structure made of two thin, porous membranes connected by tiny vertical supports, optimizing "light propulsion" through computer modeling and laboratory experiments [1] Group 2 - The research highlights the potential of "light propulsion" devices as tools for monitoring Earth's atmosphere and exploring other planets, with significant advantages in size, weight, and power consumption compared to traditional satellites [2] - Future designs of these devices could include navigation systems, increased payload capacity, and longer operational durations, enabling them to perform larger-scale tasks [2]