Our best understanding of the universe is rooted in a cosmological model known as LCDM. The CDM stands for cold dark matter, where most of the matter in the universe isn't stars and planets, but a ...

We've known the universe is expanding for a long time. The first solid paper demonstrating cosmic expansion was published by Edwin Hubble in 1929, based on observations made by Vesto Slipher, Milton ...

The Hubble parameter is one of the central parameters in the modern cosmology. Their values inferred from the late-time observations are systematically higher than those from the early-time ...

The rate of expansion of the universe is accelerating across the cosmos, driven by a mysterious force known as dark energy — but maybe not at the edges of black holes, new research suggests. Rather ...

NASA's James Webb Space Telescope is playing a pivotal role in addressing the perplexing cosmic problem called the "Hubble Tension." This enigma involves the variation between the Hubble Constant's ...

The expansion rate of the universe is called the Hubble parameter. Because the fabric of the universe is being stretched out as it expands, galaxies farther away from us appear to be moving away ...

BALTIMORE — Astronomers are honing measurements of a familiar cosmic parameter to shed new light on dark energy, the mysterious entity that’s accelerating the universe’s rate of expansion. Known as ...