A new study by University of California, San Diego computational astrophysicist Ethan Nadler shows that star formation can occur in halos down to 10 million...
The satellite galaxy Crater II (or Crater 2) of the Milky Way is located approximately 380,000 light-years away from Earth in the constellation of Crater....
The formation of galaxies by gradual hierarchical co-assembly of baryons and cold dark matter halos is a fundamental paradigm underpinning modern astrophysics...
The outer disk of our Milky Way Galaxy is warped and flared. Several mechanisms have been proposed to explain these phenomena, but none have reproduced...
The newly-discovered galaxy, SPT0418-SE, and its much larger companion, SPT0418-47, reside in a massive dark-matter halo with yet-to-be-discovered neighbors,...
A black hole in the center of a dwarf spheroidal galaxy called Leo I is almost as massive as the central black hole of our own Milky Way Galaxy.
The dwarf...
Astrophysical observations show that supermassive black holes exist when the Universe is just 800 million years old after the Big Bang (just 6% of its...
Theoretical physicists from Italy, Spain and Argentina propose a new mechanism for the creation of supermassive black holes from dark matter.
Galaxy halos...
Astronomers using with the Australian National University 1.3-m SkyMapper telescope have detected an extended dark matter halo around Tucana II, an ultrafaint...
The so-called self-interacting dark matter theory helps explain why NGC 1052-DF2 and NGC 1052-DF4, a pair of ultra-diffuse galaxies located approximately...
Super spirals are the most massive star-forming disk galaxies in the Universe. They are much larger, brighter, and more massive than our own Milky Way...
When the Universe was less than 1 billion years old, some of its stars turned into supermassive black holes. A key mystery in astronomy has been: why are...
The standard cosmological model known as LambdaCDM can only explain 5% of the observable Universe. The remaining 95% is famously made up almost entirely...
New observations with the Atacama Large Millimeter/submillimeter Array (ALMA) push back the epoch of massive-galaxy formation even further by identifying...
