Astronomers at MIT have discovered thee extremely ancient stars in the Milky Way’s halo, a cloud of stars that envelopes the entire main Galactic disk....
The reionization of the Universe occurred some 500 to 900 million years after the Big Bang. It represents the transformation of neutral hydrogen into ionized...
Residing behind a galaxy supercluster called Abell 2744, the JD1 galaxy is gravitationally lensed and displays three images.
A projected image of the galaxy...
A new image taken with NASA/ESA Hubble Space Telescope shows Donatiello II, a recently-discovered dwarf galaxy associated with the nearby spiral galaxy...
Astronomers have discovered a new ultra-faint dwarf galaxy in the constellation of Pegasus and characterized it using deep imaging with the Gemini Multi-Object...
Named Pisces VII/Triangulum (Tri) III, the newly-discovered galaxy is an ultra-faint dwarf satellite candidate of the Triangulum galaxy (also known as...
Astronomers using with the Australian National University 1.3-m SkyMapper telescope have detected an extended dark matter halo around Tucana II, an ultrafaint...
Our Milky Way Galaxy is orbited by more than 50 companion galaxies. According to new research led by University of California, Riverside astronomers, several...
A team of astronomers from the United States and the United Kingdom has found evidence that Milky Way’s faintest satellites — including dwarf galaxies...
Astronomers have identified a new ultra-faint dwarf satellite companion of our Milky Way Galaxy.
A schematic showing the locations of Virgo I and other...
