I/ATLAS, the interstellar object discovered in 2025, reveals the estimated population, composition, and distribution of ...

The Milky Way may sit inside a vast cosmic void stretching nearly two billion light years across, and this strange location could be distorting how we measure the expansion of the universe. This ...

Astronomers using NASA’s James Webb and Hubble telescopes have spotted a massive spiral galaxy appearing fully formed just ...

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 ...

The James Webb Space Telescope has observed the dwarf galaxies NGC 4490 and NGC 4485 engaged in a gravitational dance.

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 ...

Understanding how the Milky Way formed means looking far beyond the bright spiral you see in the night sky. A new study led ...

A sideways spiral galaxy shines in this NASA/ESA Hubble Space Telescope image. Located about 60 million light-years away in ...

From an interstellar comet to breathtaking auroras and from brand-new rockets to iconic space telescopes, here are some of our favorite images from the cosmos in 2025 ...

In Part 2 of his story, Benita Albert tells of astronomer Bob Benjamin's career, including teaching and now being a NASA consultant.

This mash-up of data from the James Webb Space Telescope and the Chandra X-ray Observatory reveals two galaxies mid-collision ...