How astronomers used gravitational lensing, a space-time trick predicted by Einstein, to detect a black hole measuring 30 billion times the mass of the sun.

Webb’s new images of the Bullet Cluster reveal the most detailed dark matter map yet, shedding light on cosmic collisions and ...

To understand gravitational lensing and dark matter, James Jee, a professor at Yonsei University, says to think of a pond ...

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

NASA’s James Webb Space Telescope has captured high-resolution images of the Bullet Cluster, revealing its complex dynamics.

Seen as a long strand with smaller threads branching, the Quipu superstructure contains 68 galaxy clusters spanning 1.4 ...

Learn how a "black hole 30 billion times the mass of the sun in a galaxy 2 billion light years away" using gravitational ...

For years, scientists have worked to chart the universe’s massive structure, aiming to test key models of cosmology. These ...

Everything in space—from Earth and the sun to black holes—accounts for just 15% of all matter in the universe. The rest of ...

A gravitational assist works the other way, too. Earth orbits the sun at more than 30 km/s, so firing a probe at the sun or the inner planets is extremely hard because of all that sideways velocity.

However, although photons of light existed since the first second after the Big Bang, they could not yet shine across the ...