The cosmological constant is the mathematical description of the energy that drives the ever-accelerating expansion of the ...

T he universe has a hidden structure, and a University of Virginia professor is mapping it in 3D, using 46 million galaxies ...

A study of 300,000 galaxies confirms that gravity follows Newton's law and deepens the mystery of dark matter.

The Dark Energy Spectroscopic Instrument, or DESI, has finished its planned 3D map of the universe — but the work is far from over. Carnegie Mellon University researchers are already pushing the ...

Scientists have introduced a new Big Bounce model that disputes the Big Bang, suggesting the universe may have cycled through earlier cosmic eras.

A tiny object half a universe away, a scar in a stream of stars circling the Milky Way, and an unusual star cluster in a ...

Our universe is full of mysteries, but few are as perplexing as the dark, tiny galaxies that hover around larger ones like ...