"We have discovered a galaxy that has been 'perfectly preserved' for billions of years, a true archaeological find that tells ...

NASA's James Webb Space Telescope recently zeroed in on the Bullet Cluster—delivering highly detailed images that show a ...

Astronomers have uncovered a colossal, searing-hot filament of gas linking four galaxy clusters in the Shapley Supercluster a ...

"Little red dot" galaxies discovered by the James Webb Space Telescope in the early cosmos appear to be ruled by supermassive black holes that are 1,000 times too massive.

According to MOND, the modified gravitational force for each galaxy is calculated from the mass-to-light ratio of its stars—their total mass divided by their luminosity.

These researchers explain galaxies’ missing gravity by tweaking Newton’s law of gravity instead, an approach called modified Newtonian dynamics, or MOND. According to MOND, the modified gravitational ...

In the nearby universe, an elegant ratio reigns: the mass of each central black hole is around 0.1 percent, or one thousandth, of the starry mass of each host galaxy. On supporting science journalism ...

The 1.4-billion-solar-mass black hole powering a remote quasar named ULAS J1120+0641 (illustrated) in the constellation Leo is half as massive as the stars in the surrounding galaxy, a ratio ...

The James Webb Space Telescope revealed galaxies from more than 13 billion years ago that seem to be as mature as the Milky Way is ... distance 13.1 billion light years, mass 100 billion stars, ...

Astronomers have located a rare exoplanet on the edge of the Milky Way.

The Hubble Space Telescope captured an image of a highly irregular galaxy known as ESO 174-1 located about 11 million light-years from Earth.