Exploring Variable Stars Through the Kepler Spacecraft
Astronomers have discovered a group of variable stars that have been observed by the Kepler space telescope in its extended mission. This discovery of variable stars, called RR Lyrae stars, will help astronomers better understand the nature of star formation, evolution, and the structure of the Milky Way. The variable stars are located in the Sagittarius constellation, and they are so faint that they cannot be seen with the naked eye. The Kepler space telescope, however, was able to detect their variability and to track the changes in their brightness over time. This crucial data will help astronomers to better understand the history of star formation and evolution.
source: Phys.org