In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

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 ...

While the events observed around Sgr A* are dramatic, this black hole is not as active as some at the center of other ...

Spanning 11,000 sq km of protected, pristine wilderness, Jasper National Park offers a one-of-a-kind destination for ...

Have you ever looked at the beach and wondered how many grains of sand there are? That can be mind-boggling to think about. Scientists estimate that, depending on the grain size and density, a single ...

Don Pettit’s been snapping away in orbit again. This time, the NASA astronaut has captured a stunning image of the Milky Way from the International Space Station (ISS) . It also features Earth and ...

A nebula that neighbors the Milky Way galaxy happens to be a powerhouse of forging stars, "a bouquet of thousands of stars in ...

You shouldn't set your expectations too high, but it will give you enough of a taste to see whether you want to invest in ...

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 ...

John Kounios is a professor of psychological and brain sciences at Drexel University. He is co-author of The Eureka Factor: Aha Moments, Creative Insight, and the Brain (Random House, 2015) and ...

Astrotourism is one of this year’s biggest travel trends, as more of us seek out unpolluted skies for a better view of the ...

The zodiacal light shines in the evening as the Moon reaches Last Quarter and skims past Spica and Antares in the sky this ...