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

But there are several important anomalies, including a widely debated one called the Hubble tension. It is named after Edwin ...

Around 13.7 billion years ago, something collapsed. It fell outward into the nothingness that stretched in every direction, leaving something behind. A dense plasma, made of fundamental particles ...

For nearly a century, astronomers have been striving to measure the rate at which the Universe is expanding. Two main methods have been used: one based on observations of the cosmic microwave ...

The Universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous — and highly debated — results had shown: The Universe is expanding faster than predicted by ...

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 more fuel ...

This NASA/ESA Hubble Space Telescope image features the spiral galaxy Messier 77, also known as the Squid Galaxy. Everything on Earth, in our solar system, our galaxy, and beyond is contained within ...

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding? Astronomers have tried two main methods to figure it out, but their numbers don’t ...

A new study questions dark energy's role in the universe's acceleration, suggesting it may be weakening instead.

In 1974, the project’s Science Working Group recommended that the telescope be required to resolve details at least one-tenth ...

Fourth anniversaries aren’t often causes for celebration. But in the case of the James Webb Space Telescope (JWST), which ...

Yu-Jing Qin, a postdoctoral researcher at California Institute of Technology (Caltech), led a series of spectroscopic observations using Keck Observatory’s Low Resolution Imaging Spectrometer, ...