The Dark Energy Survey is examining distant galaxies to figure out why space is expanding at an ever faster pace
Newly discovered lobes stretch tens of thousands of light-years above and below the Milky Way's disk. Where did they come from?
Two controversial new studies suggest the discovery of large objects at the outer reaches of the solar system
A new breed of giants raises questions about how the biggest galaxies arise
Astronomers get closer to an explanation for the unexpected abundance of gamma rays at the core of our galaxy...
The recently discovered small galaxy Leo P contains only about a hundred-thousandth as many stars as the Milky Way, but it's bucking the small galaxy trend by continuing to make new ones ...
The presence of the gas could have implications for theories of the early solar system
Astronomers have detected faint light that dates from shortly after the big bang
Gravitational waves from the most promising black hole binary system candidate yet could help shine a light on how these monsters at the hearts of galaxies merge
A galactic satellite reveals where some of our galaxy's elusive material is hiding
Research reveals today's produced energy is only about half of what it was 2 billion years ago
Private funding for the Arecibo Observatory—the largest single-dish radio telescope in the world—may be a poison pill
With a $100-million donation, billionaire Yuri Milner plans to revolutionize the astronomical quest to find alien life
Astronomers have discovered more than 800 so-called "ultradiffuse galaxies" that are virtually invisible because they have relatively few stars and are mostly dark matter. Clara Moskowitz reports ...
The universe’s hidden stuff could be a mirror world of invisible particles and “dark atoms”
Galactic collisions replicated in the lab help researchers investigate the origins of vastly amplified magnetic fields in the universe
A bright galaxy may hold starts from a generation that seeded the rest of the universe
As the legendary space telescope enters its twilight years, astronomers are searching for a replacement, but no one agrees about what it should accomplish
NASA’s former director of astrophysics plans to revolutionize space science with agile, privately funded missions