The laws of orbital mechanics press rocket designers to seek potential launch sites as close to the Equator as possible. The space vehicle launched due East anywhere on the Equator can use Earth rotation to its full advantage, maximizing the payload...

#1: Sound of star’s vibration reveals details of its core
Newscientist has reported that the astronomers this week have made the most detailed observation yet of the subtle vibrations of a Sun-like star. And this reveals details of the star’s...