Astronomers capture the twinkle of a distant quasar, RX J1131, and reveal the secret size of a black hole's fiery corona.

Astrophysicists in New York have created terrifying simulations of how black holes naturally create dazzling displays ...

The James Webb Space Telescope has discovered Alaknanda, a remarkably mature spiral galaxy existing just 1.5 billion years ...

A distant red giant star is rippling with seismic vibrations, and for the first time, a NASA spacecraft has translated those ...

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

NASA's next big eye on the cosmos is now fully assembled. On Nov. 25, technicians joined the inner and outer portions of the ...

The team used two of the most powerful supercomputers, capable of performing a quintillion operations per second.

If you look across space with a telescope, you'll see countless galaxies, most of which host large central black holes, ...

This infrared view offers the clearest look yet at how dwarf galaxies merge, evolve, trade gas and ignite waves of new stars.

Most of the universe is made up of dark matter and dark energy. The majority of everything else is dispersed throughout space ...

"Precision in these measurements is critical, as even subtle discrepancies could signal deviations from the model — ...