A new analysis of astronomical data suggests unknown physics is at work assisting dark energy in acting almost as "antigravity," undoing the work of gravity, which clumps together matter to build vast ...

Gamma-ray bursts (GRBs) are the most energetic events ever observed in the universe. These powerful outbursts can shine a ...

Learn how through a process known as molecular hydrogen cooling, stars may be able to form in dark matter halos under 10 ...

Not everything we knew about the universe is wrong. But not not everything. The Dark Energy Spectroscopic Instrument (DESI) collaboration just dropped their first official data release, covering the ...

Physicist Richard Lieu first explored the idea that gravity could exist without mass—now he’s got a new cosmological model ...

In recent years, one of the most troubling puzzles in astrophysics has grown more urgent. Scientists have realized that the ...

Lambda refers to a cosmological constant, which was first introduced by ... The inset shows the large-scale structure of a small portion of the universe. (Courtesy: Claire Lamman/DESI collaboration) ...

If that happens, we would need to rethink not just our research, but the study of cosmology itself. We would need to find an entirely new cosmological model, one that works as well as our current one ...

The Andromeda galaxy is surrounded by a constellation of dwarf galaxies that are arranged in a highly lopsided manner. Analysis of cosmological simulations published in Nature Astronomy reveal that ...

The cosmological constant represents "vacuum ... to see if this tension with ΛCDM could be tied to the suppression of structure," Chen said. If anything, checking DESI findings with data from ...