Astronomers have achieved a groundbreaking feat by capturing the first clear image of a star in another galaxy. This ...

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

The new composite image, which combines hundreds of photos from the Hubble Space Telescope, shows the Andromeda Galaxy with ...

A radio telescope in South Africa has unearthed a giant galaxy—dubbed a "cosmic megastructure"—with plasma jets that measure ...

The full image includes some 2.5 billion pixels compiled from observations spanning more than 1,000 orbits around Earth ...