Gravity can exist without mass.” It’s a statement that upends a century of astrophysical dogma and, for some, sounds as ...

Because it doesn't interreact with light or electromagnetism, dark matter exists to us only through its influence on visible ...

This initiative is in turn driven by my frustration with the status quo, namely the notion of dark matter’s existence despite ...

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

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

The James Webb telescope has made another stunning discovery -- this time of a massive planet that could potentially sustain ...

Gravitational lensing is a powerful tool for telescopes such as the James Webb Space Telescope as it images some of the most distant and faint early galaxies.

"We will push the limits of what we can observe, and use every gravitational lens we detect with Roman to pin down the ...

More gravitational lensing expected from the dark matter "haloes" of the foreground galaxies, indicated by red ellipses. The blue polarization "sticks" indicate the distortion.

Gravitational lensing occurs when things with mass create ripples and dents in the fabric of spacetime, and light has to follow along those lines, which sometimes create a magnifying glass effect ...

A new paper claims astronomers discovered an ultramassive black hole heavier than any other black hole we've ever measured.

The new work involves a third way to measure the distance that's independent of the other two. It relies on gravitational lensing, where the distortion in space-time caused by a massive object ...