NASA’s SAGE III Carries on Critical Measurements of Stratospheric Aerosols and Ozone

Large asteroid to (safely) zip past Earth. The asteroid is estimated to be about 900 metres (3,000 feet) in diameter and was discovered 20 years ago. NASA says it will pass by at about 124,000 kilometres per hour (77,000 miles per hour).

Lightning Strikes Played a Vital Role – Just As Important as Meteorites – in Life’s Origins on Earth

NASA Remembers Legendary Flight Director Glynn Lunney – His Team Was Credited With Saving the Apollo 13 Crew