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

The Event Horizon Telescope captured the first image of the Milky Way galaxy's supermassive black hole Sagittarius A* — our ...

About 100 years after astronomer Edwin Hubble's discovered the "magnificent" spiral nebula, the Hubble Space Telescope and ...

Hubble’s work pushed the field of astronomy forward, starting with his paper demonstrating that some objects exist outside ...

Astronomers have detected a mid-infrared flare from the supermassive black hole at the heart of the Milky Way galaxy for the ...

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

The Pinwheel Galaxy lies 21 million light-years away in the Ursa Major constellation. The Antennae Galaxies are rich in black holes and neutron stars, driving rapid star formation and evolution. This ...

Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

Astronomers have released the most comprehensive photograph of the Andromeda galaxy, which contains over 200 million stars.

The image below shows the complete mosaic ... foreground stars in our Milky Way galaxy, and two background galaxies far beyond Andromeda (shown in yellowish-orange). B: A bright star cloud ...

Recent studies challenge the long-held belief that the Milky Way is a standard model for understanding galaxy formation, ...

An ultra-deep image from the National Science Foundation's Dark Energy Camera reveals a wide variety of galaxies in the ...