Cosmic web Created using data from the JWST, this map shows how dark matter acts as the hidden framework on which visible galaxies are built. The overlaid contours mark regions of equal dark-matter ...

In the early 2000s, it seemed that cosmologists had solved the largest and most complex puzzle of all: how the universe works. “There was this amazing moment when all of a sudden, all the pieces in ...

The Universe is big, as Douglas Adams would say. The most distant light we can see is the cosmic microwave background (CMB), which has taken more than 13 billion years to reach us. This marks the edge ...

NASA's new SPHEREx observatory has released its first all-sky cosmic map. This map uses 102 infrared wavelengths to reveal the universe in unprecedented detail. Scientists can now study cosmic ...

When Voyager 1 finally crossed the “termination shock” at the edge of interstellar space in December 2004, space physicists anticipated the long-sought discovery of the source of anomalous cosmic rays ...

On December 11, 2021, a beam of gamma rays — the most energetic form of light — slammed into NASA’s Swift satellite. Within 120 seconds, the satellite had swiveled toward the blast and spotted the ...

A mysterious glow at the center of our galaxy has astronomers scratching their heads. The phenomenon, recently analyzed in greater detail, has intensified the debate over whether this glow originates ...

Cosmic strings are artifacts of what the universe looked like in the moments before it rapidly changed from a high-energy to low-energy environment—the Big Bang. Today, scientists believe cosmic ...

A real head-scratcher: The James Webb Space Telescope detected the earliest galaxy ever observed in the universe, but it presents researchers with a mystery. Scientists can't figure out how it managed ...

Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...