Dwarf

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Dwarf

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One of the 15 newly discovered planets was found orbiting one of the brightest red dwarf stars, called K2-155, located about 200 light years away from Earth.
A new study of archival ultraviolet observations from the Galaxy Evolution Explorer (GALEX) spacecraft detected dozens of flares from red dwarf stars.
Red dwarf stars are the longest-lived of all the stars.
Using the Hubble Space Telescope, the astronomers have tested whether the strength of the electromagnetic force is altered in the strong gravitational field of a white dwarf star.
Projecting outward based on the estimated 75 billion red dwarf stars in our galaxy, they arrived at the prediction that around six percent of red dwarfs should have an Earth-like planet, and the nearest one could be just 13 light years away.
All these solutions involve a white dwarf star that somehow increases in mass to the highest limit.
When scientists previously estimated the total number of stars, they assumed that all galaxies had the same ratio of dwarf stars as the Milky Way, which is spiral-shaped.
Once they discovered that there was a class of stars really big, called giants, they carved the universe up into dwarfs and giants," says Jim Holberg, a scientist who studies dwarf stars at the University of Arizona in Tucson.
Until recently, red dwarf stars were not considered capable of hosting planets that could support life.
They have investigated 500 white dwarf stars and it's the only one like it they've found.
Scattered among the galaxy are brown dwarf stars, capable of producing energy to heat colonizing stations and power starships.
There are many candidates for dark matter, including undetected brown dwarf stars, white dwarf stars, black holes, or neutrinos with mass (a neutrino is a fundamental nuclear particle that is electrically neutral and of much smaller mass, if any at all, than an electron).