Astronomers just ruled out merging black holes as a possible solution to a giant discrepancy plaguing cosmology.

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

Modern cosmology has precisely measured the universe's properties, yet dark matter and dark energy remain profound mysteries.

The supernova explosion, designated as SN 2018gv, is found in the spiral galaxy NGC 2525. According to NASA, Hubble began ...

Some astronomers think one set of measurements or the other will turn out to be wrong. Others believe that the tension is a ...

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

A star brightly 'self-detonating' has been captured by NASA's Hubble Telescope and a time-lapse video shows what happens over ...

The new study calculated the current universe expansion rate, or Hubble constant, to be 73.8 kilometers per second per megaparsec, a number significantly higher than the 67.5 value predicted by ...

These are exciting times to explore the largest unanswered questions in physics thanks to high-tech experiments and very ...

Lately the speed of the expansion has been at issue given the discrepancy between measurements of the cosmic microwave background and estimates based on Type Ia supernovae. The result: The so-called ...

Without it, we’d have no coherent picture of cosmic history. Today, the expansion first seen by Hubble is still ongoing — in ...