A study by Dartmouth researchers proposes a new theory about the origin of dark matter, the mysterious and invisible ...

Recent findings from the Dark Energy Spectroscopic Instrument suggest the possibility of new physics that extends beyond the ...

The universe isn’t just growing—it’s speeding up as it does. That discovery stunned scientists, upending long-held ideas ...

Dark matter may have started as light-like particles that abruptly became heavy—a cosmic twist rooted in spin and ...

For a while now, there has been a problematic mystery at the heart of the standard cosmological model. Although all ...

The DESI results appear to agree better with a kind of dark energy that gets weaker over time than with a cosmological constant. The results are pretty compelling but not yet what we in physics ...

rules out many of the simplest dark matter theories and will require them to be rethought, Schoeffler says. “The calculations were made possible thanks to detailed discussions with scientists working ...

From the point of view of general relativity, cosmic acceleration could be explained by saying that empty space-time has energy that drives this expansion, that it isn’t completely empty.

Dark matter, though invisible, weighs heavily on how we understand the universe. Its gravity sculpts galaxies, holds clusters ...

The idea that dark energy might be changing over time is more than a provocative twist; it addresses one of the deepest puzzles in modern physics. In Einstein’s equations describing the universe ...