Spoiler warning: Below there will be information about today's New York Times Strands puzzle.

The celestial sphere is an imaginary sphere of large ... result from massive stellar explosions or black hole formations. Constellations are patterns of stars in the sky that form recognizable ...

This magnificent 360-degree panoramic image, covering the entire southern and northern celestial sphere, reveals the ... of the International Year of Astronomy 2009. The plane of our Milky Way ...