Einstein predicted the existence of gravitationally-warped rings of light in 1915. Now, a new one has been discovered just a ...

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 ...

New data reveals a 3-million-light-year filament connecting two galaxies, each of which hosts a supermassive black hole.

The structure is nearly 600 million light-years from Earth and is an early display of the nascent dark matter telescope's ...

A European Space Agency telescope has discovered its first "extremely rare" Einstein ring in a galaxy "not too far away" ...

Experts emphasize that the cosmic microwave background is shaped by everything it encounters on its journey, including ...

Researchers said on Thursday that they had discovered twin-lobed radio jets they suspect were formed when the universe was ...

A new telescope could launch as early as late February. SPHEREx will look into deep space and also search for organic ...

CAPE CANAVERAL, Fla. (AP) — Europe’s Euclid space telescope has detected a rare halo of bright light around a nearby galaxy, ...

In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...

A rare ring of light surrounding a galaxy nearly 590 million light-years away from Earth has been discovered by a space ...

Astronomers have hailed the incredible discovery of an Einstein ring, a phenomenon that occurs when the light from a distant ...