The sky is never clearer than on a cold, starry midwinter night. It is on such occasions, thanks to winter's exceptional atmospheric transparency, that fainter stars can be seen throughout the sky.

A star's mass determines its entire life story, from how it shines to how it dies. For young stars shrouded in dust, getting an accurate mass has long been difficult, but new radio measurements are ...

"These measurements vastly expand our understanding of how stellar neighborhoods like our own are built." When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...