Satellite galaxies move in rotating discs around larger ones. Yet these galaxies aren't predicted by current models, leaving astronomers baffled.
Astronomers are learning more about our universe each day. Now, they've taken a closer look at dwarf galaxies and have found that they don't "swarm" around larger ones like bees, but actually "dance" in orderly, disc-shaped orbits.
Astronomers have uncovered seven new dwarf galaxies while probing a nearby spiral galaxy. Using a new type of telescope, the researchers' finds may yield important insights into dark matter and galaxy evolution.
The NASA Hubble Space Telescope has made an unusual discovery. It's taken a snapshot of two elliptical galaxies merging into one while a "chain" of young, stellar superclusters wind around the galaxies' nuclei.
In this case, a certain galaxy is both red and dead. Astronomers have discovered the carbon monoxide in a galaxy located about 12 billion light-years from Earth and have found that it's running out of gas, slowly pushing it toward its own destruction.
Astronomers have discovered that the supermassive black holes at the cores of some galaxies drive massive outflows of molecular hydrogen gas, which can directly impact the galaxies' evolution.
The most precise measurement to date of the strength of gravitational interactions between distant galaxies have shown perfect consistency with General Relativity's predictions.
Astronomers have created a new stellar scale as a type of "ruler" that they can use to investigate the atmospheric structure and chemical make-up of stars, making it far easier to classify and compare data on star discoveries.
The Hubble Space Telescope has revealed that powerful starbursts in dwarf galaxies may have had a larger role to play that previously expected.
Astronomers have made a startling discovery with the help of a wealth of data from online archives. They've found a treasure trove of "red nugget" galaxies, revealing a bit more about the universe.
Astronomers have found that dwarf galaxies that orbit the Milky Way and the Andromeda galaxies defy the accepted model of galaxy formation and do not fit into the current model.
NASA's Hubble Space Telescope has snapped a new, gorgeous image of the evolving universe. Using colorful images captured by the telescope over the past 24 years, astronomers have assembled a comprehensive picture.