Most of the ordinary matter in the universe is hydrogen. But surprisingly, less than 20% of this hydrogen sits inside galaxies. The rest lies in the vast spaces between them – the so-called ...

Researchers from The University of Western Australia node at the International Centre for Radio Astronomy Research (ICRAR) have uncovered an immense structure, which spans an astonishing 185,000 light ...

A research team led by physicists at the University of California, Riverside, reports tiny satellite galaxies of the Milky Way can be used to test fundamental properties of “dark matter” — nonluminous ...

UGC 10214, also known as the Tadpole Galaxy, is a barred spiral galaxy exhibiting a 280,000 light-year long tidal tail indicative of galactic interaction. Observation of the Tadpole Galaxy (magnitude ...