In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

From supermoons to a total eclipse to the national park’s biggest and best-attended star parties, these are the must-see celestial shows of the year ...

Tri-Union Seafoods canned tuna sold at Costco, Trader Joe’s, Walmart, and other stores have been recalled for botulism risk.

Astronomers trace the striking pattern to an encounter between a big galaxy and a much smaller one some 50 million years ago.

ESO/L. Calçada, N. Risinger (skysurvey.org), DSS, VISTA, VVV Survey/D. Minniti DSS, Nogueras-Lara et al., Schoedel, NACO, GRAVITY Collaboration, EHT Collaboration (Music: Azul Cobalto) ...

Amateur astronomers and beginners will find the Dwarf 3 Smart Telescope useful for capturing shots of the night sky with the ...

"These two supernova remnants are helping us to better understand the dynamics of our home galaxy’s neighborhood," ...

As night falls on the Atacama desert in northern Chile four giant telescopes turn their gaze towards the star-strewn heavens.

A photo of lichen-covered trees at Chanctonbury Ring in West Sussex has been named as a winner in an astrophotography ...