The middle star in the dagger is actually not a star, but the Orion Nebula, which through a telescope is revealed to be a ...

We're now just past the midpoint of astronomical winter — that moment marking the midway point between December's winter solstice and March's vernal equinox. That moment took place at 4:11 p.m.

Neutron stars, the collapsed remnants of massive stars, hold the densest matter in the universe. These cosmic objects are ...