To explore this long-standing mystery, an international team of scientists formed a group known as the Collaboration for ...

Gaze deep into the night sky, and space appears to extend infinitely far in all directions. Given such a view, it’s mind-boggling to think that space might be bounded. Yet, just as the flat-seeming ...

The Herschel space telescope's view of RCW 120 shows a bubble pushed out by a big star's blast, with yet another giant star forming on the bubble's right edge. The shapes of bubbles and clouds in ...