To astronomers in the 1990s, these three facts were self-evident: The universe is expanding; all the matter in the universe ...

Fresh corroboration of the perplexing observation that the universe is expanding more rapidly than expected has scientists pondering the cause - perhaps some unknown factor involving the ...

In the meantime, the universe keeps expanding—and the debate over its rate keeps widening. The Hubble tension is no longer just a nagging anomaly.

For more than two decades, the standard model of cosmology has stood as a reliable guide to the universe. Known as Lambda ...

A new Utah Valley University study is providing new evidence in a debate astronomers across the world haven’t been able to agree on — how fast the universe is expanding. The findings may add ...

Published in The Astrophysical Journal, the study used observations of distant galaxies and supernovae to independently calculate the modern universe's expansion rate using three separate methods.

Dark energy, the mysterious force driving the accelerated expansion of the universe, has puzzled scientists since its ...

Fresh corroboration of the perplexing observation that the universe is expanding more rapidly than expected has scientists pondering the cause.