Ultra-faint dwarf galaxies—tiny satellite galaxies orbiting the Milky Way—have long been seen as cosmic fossils. Now, a new ...

Our universe is full of mysteries, but few are as perplexing as the dark, tiny galaxies that hover around larger ones like ...

By analyzing the data from the Pan-Andromeda Archaeological Survey (PandAS), European astronomers have discovered a new satellite of the Andromeda galaxy. The newfound object, which received the ...

The James Webb Space Telescope’s Near-Infrared Camera captured an "array of stars that make up the dwarf galaxy Wolf–Lundmark ...

The James Webb Space Telescope has produced the most detailed view yet of the interacting dwarf galaxies NGC 4490 and NGC 4485, located 24 million light-years away in Canes Venatici. The infrared ...

In an ancient dwarf galaxy on the outskirts of the Milky Way, astronomers have discovered one of the most chemically primitive stars ever seen. Named PicII-503, the star’s extreme lack of heavy ...

A new study suggests that failing to detect dark matter signals in some galaxies may not contradict evidence seen in our own.

The absence of a signal could itself be a signal. This is the idea behind a new study published in the Journal of Cosmology and Astroparticle Physics, which aims to redefine how we search for dark ...

The constellation of Ursa Major (The Great Bear) is home to Messier 101, the Pinwheel Galaxy. Messier 101 is one of the biggest and brightest spiral galaxies in the night sky. Like the Milky Way, ...

A mysterious glow of gamma rays at the center of the Milky Way has long hinted at dark matter, but the lack of similar ...

One of the features of working in a department of physics and astronomy is that I’m always learning new things. A conversation in the hallway and I have a new appreciation for static charge. A ...