HD 140283, better known as the Methuselah star, is around 200 light-years from Earth, in the constellation of Libra. It is ...
Astronomers see no stars ejected from the center of our Milky Way galaxy, giving them important information about the Sgr A* black hole.
The Milky Way ripples like a vast cosmic wave. Gaia’s precise measurements reveal a colossal motion sweeping through the galaxy’s disc, an echo of something mysterious in our galaxy’s ancient past.
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