Seven sisters constellation’s brightest members will be hidden from view for about an hour ...

JWST observations of galaxy cluster MACS J1149 show gravitational lensing used by CANUCS to study distant low-mass galaxies across a wide range of cosmic time.

A composite of galaxy cluster known as MACS0416 created using James Webb Space Telescope and Hubble Space Telescope imagery.

Inside an incredibly bright cluster of galaxies, a long-dormant supermassive black hole has come back to life. Radio images ...

The final, formatted version of the article will be published soon. Galaxy cluster-scale strong gravitational lensing systems are rare yet valuable tools for investigating the properties of dark ...

NASA’s Chandra X-ray Observatory catalog provides over 400,000 sources and detailed X-ray mapping of the Milky Way center, ...

James Webb Space Telescope imagery of Pandora’s Cluster (Abell 2744) delivers three galaxy clusters and so much more. Take a ...

To explain these observations, they proposed a new kind of energy that is responsible for driving the universe’s accelerated expansion: dark energy. Astrophysicists now believe dark energy makes up ...

“As a result, for the past four decades, most researchers have believed that dark matter must be cold when it is born in the ...

Observations of the thermal energy in a baby galaxy cluster 12.4 billion light years away suggest much more energetic early ...

The observed near flatness of galactic rotation curves has long been interpreted as evidence for large amounts of non-baryonic dark matter. Here we show that this phenom ...

This NASA/ESA/CSA James Webb Space Telescope Picture of the Month brings us a scene from the distant universe. Pictured here ...