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

In simplest terms, the rate at which the universe expands on paper doesn’t match actual astronomical observations. That speed ...

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding?

The rate at which the universe is expanding, known as the Hubble constant, is one of the fundamental parameters for understanding the evolution and ultimate fate of the cosmos. However ...

Over the past decade, two very different ways of calculating the rate at which the universe is expanding have come to be at odds, a disagreement dubbed the Hubble tension, after 20th-century ...

The rotating model, which does not break any known law of physics, suggests the universe could spin around once every 500 billion years. This would be far too slowly to detect easily, but enough to ...

Type Ia supernovae serve as "standard candles" for astronomers, providing a consistent measure of distances, essential for calculating the universe's expansion rate. A galaxy in front of the ...

“According to what we call ‘standard’ cosmology, our universe is and has been expanding at different rates throughout its history,” explained Humberto Gilmer, a postdoctoral researcher at Brown ...