An international team of scientists has discovered seven — and perhaps eight — dwarf galaxies orbiting Earth’s home galaxy, the Milky Way.
The discovery of several large, metal-poor stars located far from the center of the Andromeda galaxy suggests our nearest galactic neighbor might be up to five times larger than previously thought.
01.02Moon Over Andromeda
The Great Spiral Galaxy in Andromeda (aka M31), a mere 2.5 million light-years distant, is the closest large spiral to our own Milky Way. Andromeda is visible to the unaided eye as a small, faint, fuzzy patch, but because its surface brightness is so low, casual sky gazers can’t appreciate the galaxy’s impressive extent in planet
The scientists have for the first time charted remote parts of the Universe, showing that the distribution of galaxies has considerably evolved with time, depending on the galaxies’ immediate surroundings. This surprising discovery poses new challenges for theories of the formation and evolution of galaxies.
If advanced technological civilizations really are out there, maybe they simply can’t afford to build interstellar spacecraft. Myrhaf assumes that the only realistic way to travel between the stars is via a slow generation ship, what Isaac Asimov once called a ’spome’ or ’space home.’ And he doubts anyone would attempt it
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After eight years of study, NASA has approved the construction of an unmanned satellite that will scan the entire sky in infrared light to reveal nearby cool stars, planetary “construction zones” and the brightest galaxies in the universe.
A new Hubble image of the Antennae galaxies is the sharpest yet of this merging pair of galaxies. As the two galaxies smash together, billions of stars are born, mostly in groups and clusters of stars. The brightest and most compact of these are called super star clusters.