The word itself comes from galaktikós kyklos, or “milky circle,” the ancient Greek term for the Milky Way, our home galaxy.

A massive, rotating disk galaxy designated DLA0817g and nicknamed the "Wolfe Disk," formed just 1.5 billion years after the Big Bang. It was discovered using ALMA, the Atacama Large ...

A star in a faraway galaxy is sending itself into a spiral of doom, repeatedly plunging through a disk of hot gas surrounding ...

A blob of gas seen outside the Milky Way could be a type of starless, dark matter–dominated galaxy. Some scientists are skeptical.

Did you know some of the brightest sources of light in the sky come from the regions around black holes in the centers of ...

Quasars represent some of the most luminous and energetic phenomena in the universe. These distant powerhouses are driven by ...

However, not all spiral galaxies are created equal, as two recent images from the Hubble Space Telescope show. The image above shows galaxy NGC 3596, a neat and orderly spiral galaxy. And the image ...

Researchers suggest the universe's background radiation has been overestimated, potentially challenging the standard model of cosmology and our understanding of early galaxy formation. Space, time and ...

Membership is a widely accepted mark of excellence in science and is considered one of the highest honors that a scientist ...