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

So, to create a must-read story list for you, we asked our staff to select their favorite pieces of 2025. Alas, while you're ...

A mysterious force called Dark Energy might be changing, in a way that challenges our current understanding of the nature of time and space.

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

We suggest that there should be a minimum electromagnetic radiation frequency in the Hubble sphere and that this seems to be directly linked to the Hawking Temperature and our recent discovery that ...

Animation of the findings by researchers who used time-delay cosmography to independently confirm that the universe’s current ...

Our understanding of the true nature of the cosmos relies on measurements of its expansion, but cosmologists have been ...

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, ...

An international team of astronomers using a combination of ground-based telescopes, including the W. M. Keck Observatory on ...

In two recently published papers, members of the Waterloo Centre for Astrophysics at the University of Waterloo presented a new measurement of the Hubble parameter using data from the Dark Energy ...

JUICE and the Hubble Space Telescope turned their gazes towards the interstellar visitor in November. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

NASA's Hubble Space Telescope and an ESA orbiter bound for Jupiter both recently glimpsed 3I/ATLAS. The comet will make its closest approach to Earth in December but poses no threat and is not visible ...