... Massive Stars Resolved in the Carina Nebula . ... How massive can stars be? ... An Apollo 15 Panorama: Astronaut Exploring . ... What would it be like to explore the Moon? ... Night skies over Chilean mountain top observatories can be dark and clear, with glorious cosmic vistas. ... A mere 50 light-years away, young star Beta Pictoris became one of the most important stars in the sky in the early 1980s. Satellite and ground-based telescopic observations revealed the presence of a surrounding.. ...