|Gaia||19. 12. 2013||Ongoing|
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Astronomers identified the most distant stars still belonging to our own galaxy. The variable RR Lyrae stars have a unique pulsating period related to its brightness which allows scientists to determine their distance. It was found to be 1,2 million light years away - almost half distance to our neighboring big galaxy - Andromeda.
Astronomers detected evidence of extragalactic structure hidden behind the core of the Milky Way when looking from Earth. The region is known as a Zone of Avoidance and it’s largely unexplored due to dust and stars in our own galactic center. The structure consists of 5 galaxies analyzed in new scientific study and probably holds much more.
Astronomers led by Byeong-Cheol Lee have made a groundbreaking discovery, detecting a brown dwarf orbiting the red giant HD 18438. With a radius of 89 times that of the Sun, HD 18438 is now the largest known star to be orbited by an exoplanet or brown dwarf.