The Milky Way measures 100 to 120 thousand light-years across, a distance that defies imagination. But clusters of galaxies, which…
There are few moments more breathtaking than standing beneath a brilliant starry sky. Thousands of small specks of light mark…
Could a strange X-ray signal coming from the Perseus galaxy cluster be a hint of the elusive dark matter in…
Sometimes a strange signal comes from the dark and it takes a while to figure out what that signal means.…
Host: Fraser Cain Astrojournalists: David Dickinson, Matthew Francis, Casey Dreier, Jason Major, Brian Koberlein, Alan Boyle This week's stories: Alan…
Warped visions of the cosmic microwave background - the earliest detectable light - allow astronomers to map the total amount…
Atoms, string theory, dark matter, dark energy... there's an awful lot about the Universe that might make sense on paper…
Researchers with the Cosmic Flows project have been working to map both visible and dark matter densities around our Milky…
When did the first stars and galaxies form in the universe and how brightly did they burn? Scientists are looking…
Dark matter: it's invisible, it's elusive, it's controversial... and it's everywhere -- in the Universe, yes, but especially in the…