Figure 2: Examples of gravitational-lensed images observed with the Hubble Space Telescope. Left: 2M130-1714, in which the four bright and bluish points comprise the quadruply-lensed images of the ...

Astronomers have made a groundbreaking discovery in the Perseus galaxy cluster, located 240 million light-years from Earth.

The school-bus-sized observatory launched on April 24, 1990 and overcame early setbacks to become one of the most ...

The sun as a gravitational lens is the most powerful accessible telescope in history. We use Einstein's relativity to calculate what the magnifying power of the solar gravitational lens could be.

by leveraging weak gravitational lensing—a light distortion effect described by general relativity—in astronomical images collected by new observatories such as the Euclid Space Telescope.

Such a "lens effect" is also caused by gravitational fields: light moving through the universe is deflected, sometimes creating multiple images of the same object. This gravitational lensing effect ...

1065-1086 (22 pages) AbstractWeak gravitational lensing observations are a key science driver for ... algorithm to derive oversampled images from dithered, undersampled input images. We created shear ...