The gravitational lens JVAS B1938+666 consists of massive bodies ranging from 6.5 billion to 11 billion light-years away, ...

The ancient barred spiral galaxy 'COSMOS-74706' is observed for its light and stellar bar, placing it on a timeline dating ...

Four lenses and a Spatial Light Modulator allow each pixel to have a different focal length in research from Carnegie Mellon ...

A strange, starless cloud on the edge of a nearby galaxy is forcing astronomers to confront one of the biggest unknowns in ...

Galaxy clusters are formed by a dense packing of many galaxies, making them the most massive structures in the universe.

Thanks to an enormous stroke of luck and serendipitous timing, astronomers were able to calculate the mass and distance of a ...

Two separate research teams have observed a previously unseen microlensing event, confirming the existence of a particular ...

While most planets that we are familiar with stick relatively close to their host star in a predictable orbit, some planets ...

A lucky alignment of space- and ground-based telescopes has enabled researchers to nail down the mass of a rogue planet for the first time. Unlike worlds in our Solar System, rogue planets do not ...

Distance records are an excellent proxy for the state of the art in astronomy. Finding extremely faraway galaxies is hard. In general, objects get smaller and fainter with distance (although bizarre ...

Day 24 of the 2025 Space Telescope Advent Calendar: A Gravitational Lens. Galaxies in this James Webb Space Telescope image appear to be stretched into arcs and lines, their appearance warped and ...

For much of the twentieth century, scientists expected the expanding universe to slow over time. The opposite turned out to be true. Space is stretching faster today than in the past, and the precise ...