Astronomers have observed a Sun-like star dim dramatically for nearly nine months after being obscured by a vast cloud of gas and dust. A huge cloud filled with vaporized metals has been spotted ...
The Gemini South telescope’s newest science instrument — GHOST, the Gemini High-resolution Optical SpecTrograph — achieved first light by making exquisite observations of HD 222925, a remarkably ...
Astronomers, using the unique capabilities offered by the high- resolution spectrograph UVES on ESO’s Very Large Telescope, have found a metal-rich hydrogen cloud in the distant universe. The result ...
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