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

ESA/Hubble & NASA, S. Allam et al. Gravitational lensing occurs when a telescope like Hubble is pointed at a distant target like this galaxy, and a large object such as a cluster of galaxies ...

Hubble's initial value was on the order of 500 (km/s)/Mpc. By the 1960s, the value settled down to between 50 and 90 (km/s)/Mpc, where it stayed for most of the 20th century.

The Hubble Space Telescope is a constant source of pictures of the wonders of space, and this week's image shows a phenomenon called gravitational lensing. Skip to main content.

This Hubble Space Telescope photo, released Feb. 2, 2012, shows a distant galaxy 10 billion light-years away (shown as) as it appears through the gravitational lens around the galaxy cluster RCS2 ...

Now, astronomers have measured the Hubble constant using light from a supernova that exploded 9.34 billion years ago. On its way to Earth, the light passed through a galaxy cluster and was deflected ...

The universe has continued expanding since it was born about 13.8 billion years ago. By analyzing the present rate of cosmic expansion, known as the Hubble constant, scientists can estimate the ...

The Hubble Space Telescope has captured the mirror image of a distant galaxy. NASA released the photo which appears to show two galaxies, but is actually one duplicated by gravitational lensing.

“Gravitational lensing can result in multiple images of the original galaxy, as seen in this image,” the Hubble team wrote in an image description published by the European Space Agency (ESA ...

The Hubble constant is a measure of the Universe's expansion, as you can tell from its units, which are kilometers per second per Megaparsec. ... It relies on gravitational lensing, ...

But the gravitational lensing here displays a special type of phenomenon, known as an Einstein ring. You May Also Like SEE ALSO: Hubble spots a roaming black hole light-years from where it belongs ...