The measurements suggest the inner-halo stars are younger than the outer-halo population ... “Our galaxy and Andromeda are both so big, there’s hardly any space between the two galaxies.” ...

A blast of radio waves from the outskirts of an ancient galaxy challenges theories about what creates such bursts.

Stars form in large clouds of gas and ... is an important step in understanding the evolution of galaxy clusters. The outer space world is home to endless mysteries and secrets waiting to be ...

Previously, when NASA’s now-retired Spitzer Space Telescope observed the Sombrero galaxy, the outer ring appeared smooth ... Ten times as many stars are born in the latter galaxy than the ...

There are more stars in the universe than grains of sand on Earth. The latest estimates suggest there are around one septillion stars, which is a 1 followed by 24 zeros. Our sun is a typical G-type ...

A fast radio burst, or a strong pulse of energy, was tracked to a distant long-dead galaxy that astronomers never thought could produce such a signal.

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

said Marc Postman of the Space Telescope ... darkness of the outer Solar System enabled the scientists to isolate the COB by subtracting scattered light from bright stars and galaxies, faint ...

The Sombrero galaxy shines in a new mid-infrared image, revealing a smooth inner disk and intricate clumps in its outer ring. Herbig-Haro 46/47, a cloud in space, gives birth to new stars ...

“This detailed look at the resolved stars will help us to piece together the galaxy’s past merger and interaction history,” Williams adds. Hubble, however, has its limits—the space ...