By tracking individual stars and exploding supernovas, astronomers discovered the strength of early ultraviolet glow ...

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

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 ...

Ultra-faint dwarf galaxies – tiny satellite galaxies orbiting the Milky Way – have long been seen as cosmic fossils. Now, a new study published today in Monthly Notices of the Royal Astronomical ...

Ultra-faint dwarf galaxies orbiting the Milky Way are cosmic fossils. New simulations reveal how these tiny systems reflect ...

The early universe, those first hundreds of millions of years after the Big Bang, is a time of mystery for us Earthlings. Now, some impressive simulations by researchers at the Georgia Institute of ...

It looks like this detailed image of a far-off galaxy was captured an advanced space telescope, or a huge ground-based scope.

Astronomers have used high-resolution simulations of ultra-faint dwarf galaxies to probe the 'climate' of the early universe. Led by Dr. Azadeh Fattahi, the study modeled the smallest galaxies to ...

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, ...

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 ...

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 ...