The night sky is centered on the south galactic pole in this image, which is a stereographic projection. In this special projection, the Milky Way curves around the outskirts of the image in an arc. The stars in the newly discovered stellar stream are shown in red. Image via University of Vienna.
Researchers used Gaia data to find a stellar stream of at least 4,000 stars that have been moving together in space since they formed about a billion years ago. Read more.
The Chinese spacecraft Chang’e-4 made history earlier this year, when it became the first earthly spacecraft to land on the moon's far side. Now astronomers have named its landing site. Read more.
The Spring Triangle is a large asterism, consisting of 3 bright stars in 3 different constellations. There's a smaller Triangle, made with the star Denebola, inside it. Read more.
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