"The new model can account for both structure formation and stability, and the key observational properties of the expansion ...

General relativity states that objects with mass cause the very fabric of spacetime (the 4D unification of space and time) to ...

When cosmologists used different ways to measure the value of sigma 8, a number that denotes how clumpy the universe is, they came up with different estimates. This lack of agreement has come to be ...

Astronomers using W. M. Keck Observatory on Maunakea, Hawaiʻi Island have found compelling evidence of a dark matter-deficient dwarf galaxy, FCC 224. This ultra-diffuse galaxy is located on the ...

Major survey results now hint that dark energy has evolved across cosmic history, raising questions about the standard model ...

But in a new study, published in Physical Review Letters, we show that both could be linked to one of the most elusive ingredients in the universe: dark matter. In particular, we propose that a ...

These singularities in space in lieu of dark matter also generate something called "negative pressure," a type of energy density, like that of dark energy, that has a repulsive gravitational ...

As detailed in a new study published in the journal Nature Astronomy, the astronomers have found a "bridge" of dark matter that leads to the center ... and recent observations from the Euclid and ...