Much of the mass in the universe lies not in stars or galaxies, but in the space between them, known as the intergalactic medium. It is warm and even hot, and is called the "warm-hot intergalactic ...

The James Webb Space Telescope was built to see the first galaxies, but it is rapidly becoming something stranger: a laboratory for the invisible. By pushing into the faintest, earliest structures in ...

Astronomers have uncovered a vast, razor-thin strand of galaxies that is not just drifting through space but spinning ...

New research explores how gravitational waves from black hole systems could help scientists study dark matter, using improved models and future detectors like LISA ...

Smooth filaments stretching for many light-years, seen by the powerful space telescope, could indicate what the right "recipe" is for dark matter. When you purchase through links on our site, we may ...

Look up on a dark night and the stars seem scattered at random. Step back in scale, though, and the Universe looks nothing like a loose dusting. On its largest stretches, matter forms a vast web.

Dark matter and its impact on cosmology have puzzled physicists for nearly a century. At Perimeter Institute, two researchers are trying to better understand how one potential dark matter candidate, ...

Schematic of the night sky areas are outlined with contour lines, similar to elevation lines on a hiking map, revealing the “fingerprints” of dark matter. A Rutgers-led team of scientists has ...

It’s one of the most memorable moments of my career – and not in a good way. I was giving a talk to a room packed full of eminent astrophysicists, but there had been a bit of a childcare crisis, so ...

A new way to study 3D maps of galaxies in the cosmos without compressing the data is revealing new information about the dark universe. When you purchase through links on our site, we may earn an ...

Researchers may have identified what could be a compelling clue in the ongoing hunt to prove the existence of dark matter. A mysterious diffuse glow of gamma rays near the center of the Milky Way has ...

Astronomers tracking interstellar comet 3I/ATLAS reveal a far bigger story: a colossal, rotating chain of galaxies that may be the universe's largest spinning structure.