World's Largest Organism Is Slowly Being Eaten, Scientist Says

Full 3D simulation of the Chelyabinsk meteor breakup in Earth’s atmosphere (Credit: Lawrence Livermore National Laboratory)

NASA and the Italian space agency Agenzia Spaziale Italiana (ASI) are partnering to build and launch the Multi-Angle Imager for Aerosols (MAIA) mission, an effort to investigate the health impacts of tiny airborne particles polluting some of the world’s most populous cities.

NASA is monitoring an asteroid that could collide with Earth on Valentine's Day in 2046