Astronomers detect hydroxyl molecule signature in an exoplanet atmosphere

Astronomers detect first ever hydroxyl molecule signature in an exoplanet atmosphere

Perseverance Successfully Extracts Oxygen From the Martian Atmosphere. About 10 Minutes of Breathing Time for an Astronaut

Satellite skyglow may mean light pollution is unavoidable. Even when satellites and other objects in orbit are too dim to be resolved by the naked eye, they collectively scatter enough light back into the atmosphere that it produces a diffuse glow similar to light pollution from cities.