On Earth, the Sun often appears yellow or even orange and red, particularly at sunrise and sunset. This visual shift occurs ...

The United States has used several different insignia on its military aircraft throughout its aviation history, and some have ...

Clues about how galaxies like our Milky Way form and evolve and why their stars show surprising chemical patterns have been ...

New simulations reveal that the Milky Way’s odd split between two chemically distinct groups of stars isn’t a universal ...

New high-contrast images from SPHERE show a stunning variety of debris disks shaped by collisions of tiny planet-building ...