An image of a gravitationally lensed galaxy was recently captured ... that takes place when huge celestial bodies, like a galaxy cluster, causes the light passing though it to bend.

Webb was even able to image the nuclear star cluster at the galaxy's ... That's what Webb spotted earlier this year—a galaxy 12 billion light-years away lensed by one just 3 billion light ...

The James Webb Space Telescope was late to launch, but the observatory is making up for lost time. After several years of operation, Webb has captured some truly stunning cosmic vistas, complete ...

In this image, the NASA/ESA Hubble Space Telescope peers into the spiral galaxy NGC 1317 in the constellation Fornax, located ...

What can heat distribution within galaxy clusters, which often consist of hundreds to thousands of galaxies, teach astronomers about their formation and evolution? This is what a recent study ...

Astronomers from Swinburne University in Australia and elsewhere have employed the Keck II telescope to investigate the globular cluster system of an ultra-diffuse galaxy designated NGC5846_UDG1.

The XRISM science team, including members of Nagoya University, has explained how galaxy clusters maintain their heat despite emitting X-rays, which typically have a cooling effect on the hot gas.

These clouds of radio energy are "radio relics" resulting from powerful shockwaves surging through the hot gas that fills the space amid a galaxy cluster. Credit: Kamlesh Rajpurohit et al / https ...

The Perseus galaxy cluster taken by the Subaru Telescope at the Mauna Kea Observatory in Hawaii. The newly discovered subcluster is on the right. Overlaid in blue is the inferred distribution of ...

The galaxy’s sweeping spiral arms are filled with young blue star clusters and ionized hydrogen gas, indicating rapid star formation. Astronomers believe its bar-like structure channels gas ...