Google’s Pixel 9a doesn’t just look like a strong successor over last year’s model, it also appears to be the best phone that ...

Though tiny, this newfound satellite galaxy around M31 offers big lessons — and questions — about how galaxies evolve.

The DESI experiment shocked cosmologists with a hint that dark energy varies over time. Now, with more data, the conclusions hold up.

ESA's Euclid mission is exploring the "dark universe." The space telescope's latest images offer fascinating new insights.

New data further challenge the best scientific theory of the history and the structure of the universe. But a separate recent ...

The James Webb Telescope has discovered a gigantic galaxy in the early universe, probably from 12 billion years ago.

A new map of cosmic expansion suggests that dark energy evolves over time, hinting that the universe doesn’t work the way we ...

The James Webb Telescope has discovered a gigantic galaxy from the early universe, likely dating back 12 billion years.