Hubble's new image of galaxy cluster Abell 209 reveals over 100 galaxies and gravitational lensing effects from dark matter ...

Though invisible, dark matter has a strong pull on space. Its presence bends spacetime, changing the paths of light nearby.

The NASA/ESA Hubble Space Telescope has unveiled a stunning image of the Abell 209 galaxy cluster, located 2.8 billion ...

A colossal cluster of galaxies is bending the very fabric of space—and it’s the focus of this week’s breathtaking image from ...

A massive, spacetime-warping cluster of galaxies is the setting of today's NASA/ESA Hubble Space Telescope image. The galaxy ...

A spider’s spindles are often invisible. On Thursday, the European Space Agency drew on the allegory to describe a Hubble Space Telescope image, and why the galaxy cluster Abell 611 confuses ...