Nov 27, 2018
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Image: Hubble spots a lonely blue dwarf
This captivating image from the NASA/ESA Hubble Space Telescope's Wide Field Camera 3 shows a lonely dwarf galaxy 100 million light-years away from Earth. This image depicts the blue compact dwarf galaxy ESO 338-4, which ...
The dance of the small galaxies that surround the Milky Way
An international team led by researchers from the IAC used data from the ESA satellite Gaia to measure the motion of 39 dwarf galaxies. This data gives information on the dynamics of these galaxies, their histories and their ...
Dark matter 'hurricane' offers chance to detect axions
A team of researchers from Universidad de Zaragoza, King's College London and the Institute of Astronomy in the U.K. has found that a "dark matter hurricane" passing through our solar system offers a better than usual chance ...
Gaia spots a 'ghost' galaxy next door
The Gaia satellite has spotted an enormous 'ghost' galaxy lurking on the outskirts of the Milky Way.
Has a new dwarf galaxy been found hiding behind Andromeda?
One of the greatest challenges of astronomy is locating objects in space that are obscured by the light of nearby, brighter objects. In addition to making extra-solar planets very difficult to directly image, this problem ...
Gravitational waves could shed light on dark matter
The forthcoming Laser Interferometer Space Antenna (LISA) will be a huge instrument allowing astronomers to study phenomena including black holes colliding and gravitational waves moving through space-time. Researchers from ...
Sextans: The smallest cannibal galaxy discovered until now
A team at the Instituto de Astrofísica de Canarias (IAC) has discovered a new case of galactic cannibalism in the neighbourhood of the Milky Way, which has caused the merging of two galaxies on the smallest scale so far ...
Four newly discovered Milky Way neighbors
Ultra-faint dwarf galaxies are the smallest, most dark matter dominated, and least chemically enriched stellar systems in the universe, and are important targets for understanding dark matter and galaxy formation. They comprise ...
Gaia detects a shake in the Milky Way
A team led by researchers from the Institute of Cosmos Sciences of the University of Barcelona (ICCUB, UB-IEEC) and the University of Groningen has found, through the analysis of Gaia data, substructures in the Milky Way ...
