For decades, scientists have puzzled over traces of primordial helium—a rare isotope known as ³He—escaping from volcanic ...

Framed in this single, starry, telescopic field of view are two open star clusters, M35 and NGC 2158. Less-bright, non-blue stars like our Sun surely also exist in this M41 star cluster but are harder ...

Luna skims by Mercury, Venus, Uranus, Neptune, and Jupiter as it grows from a thin crescent to just past First Quarter in the ...

Could this medium-sized, app-free star-projector-night-light combo make the perfect gift for a space fan? We find out.

On Feb. 28, seven planets—Mars, Jupiter, Uranus, Venus, Neptune, Mercury, and Saturn—will all grace the early evening sky.

Multiple planets are going to appear together in the sky. Some astronomy fans are calling it a “planet parade.” There won’t ...

Photoshop CS6 tutorial showing how to make a colorful nebula and celestial sphere in deep space. PSD file: <a href=" Planet texture: <a href=" ...

Hubble captures a detailed image of the Tarantula Nebula The nebula features cosmic dust crucial for star formation Scientists study dust’s role in planetary evolution ...

Billions of starless planets, or PMOs, drift through space. New research reveals they form through violent star disk ...

How do rogue planetary-mass objects -- celestial bodies with masses between stars and planets -- form? An international team of astronomers has used advanced simulations to show that these enigmatic ...

Fans are convinced that one of the big storylines in season 2 of the hit Star Wars show will bring a major turning point in ...