A long-simmering disagreement over the universe’s present-day expansion rate shows no signs of resolution, leaving experts ...

In studying the history of the universe itself ... of accelerated expansion would be transient and would end at some point in the future. Other phases in cosmic history have had a beginning ...

American astronomers achieved a groundbreaking discovery, which revealed a quasar that possibly acted as one of the key factors in terminating the “dark ages” era of the universe ... more and more ...

SpaceX’s latest rocket launch could carry instruments designed to detect or reveal dark matter—an invisible force that makes ...