Webb takes a closer look at Abell S1063, a distant galaxy cluster that acts like a cosmic lens, peering into the universe’s ...

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

A dam Riess was 27 years old when he began the work that earned him the Nobel Prize in Physics, and just 41 when he received ...

Jupiter joins Mercury in early twilight as Mars lingers with Leo after dark. Saturn is visible in the morning, meeting ...

A potential new dwarf planet has been discovered in the outer reaches of the solar system, and its existence poses the ...