Next-Gen Adaptive Optics
The Subaru Telescope has donned a new pair of glasses called Raven, a multi-object adaptive optics system that enables astronomers to correct for atmospheric turbulence over an unprecedented field of view.
The Quasar Main Sequence
A new diagram suggests two physical properties – how efficiently the black hole feeds and the system’s orientation – lie behind quasars’ diversity.
Curiosity Readies To Climb Mount Sharp
Now two years into its exploration of Mars, NASA’s big rover has reached the base of the huge mound that scientists hope will reveal the Red Planet’s history.
Meet My Variable Friend SS Cygni
Get acquainted with SS Cygni, the sky’s brightest cataclysmic variable star. It’s guaranteed to keep you on your toes.
Tour September’s Sky: Farewell to Saturn
The astronomical calendar says autumn arrives on September 22nd. It’s a season of transition, with plenty of celestial comings and goings in the evening sky.
This Week’s Sky at a Glance, September 12-20
Sky & Telescope’s weekly celestial-events calendar, with sky views, offers selected astronomy sights for your unaided eyes, binoculars, or a telescope.
Exotic Cruise to See the 2016 Solar Eclipse
In partnership with InSight Cruises, Sky & Telescope offers you a golden opportunity to witness the spectacular beauty of the March 9, 2016 total solar eclipse in the western Pacific aboard the Holland America liner ms Volendam.