The U.S. National Science Foundation's NOIRLab-operated Gemini South Telescope used its latest upgrade— GHOST, the Gemini High-resolution Optical SpecTrograph—to capture observations of HD 222925, a star more than 1,400 ...
Astronomy
Aug 25, 2022
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Gemini South, one of the world's most productive and powerful optical-infrared telescopes, has received a major capability boost with the successful installation of a new high-resolution spectrograph called GHOST constructed ...
Astronomy
Jul 20, 2022
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In 1930, Dorrit Hoffleit reported that star number #4749 in the Harvard List of variables had faded four times between 1897 and 1929, and identified it as an R Coronae Borealis (RCB) variable. RCB stars are luminous low-mass ...
Astronomy
May 20, 2020
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The combination of observations made with the CARMENES spectrograph on the 3.5m telescope at Calar Alto Observatory (Almería), and the HARPS-N spectrograph on the National Galileo Telescope (TNG) at the Roque de los Muchachos ...
Astronomy
Jun 11, 2019
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13
A cutting-edge instrument developed by scientists at the University of Oxford has passed critical tests and gained a powerful adaptive optics system.
Astronomy
Dec 21, 2018
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Earlier this month, the Sloan Digital Sky Survey (SDSS) reached an important milestone by opening its "second eye on the sky" – a new instrument called the "APOGEE South spectrograph."
Astronomy
Mar 29, 2017
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11
Europe's NIRSpec instrument will be launched in 2018 as part of the NASA–ESA James Webb Space Telescope. This week, in recognition of the UN International Year of Light, a NIRSpec model is among the cutting-edge optical ...
Space Exploration
Nov 25, 2015
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6
When you look up on a clear night and see stars, what are you really looking at? A twinkling pinprick of light with a hint of colour?
Astronomy
Jul 17, 2015
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A close-up of Comet 67P/Churyumov-Gerasimenko by NASA's ultraviolet instrument surprised scientists by revealing that electrons close to the comet's surface—not photons from the Sun as had been believed—cause the rapid ...
Space Exploration
Jun 2, 2015
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33
Building a space telescope is no mean feat. Conditions here on Earth are drastically different from those experienced in orbit around our planet. How do we know that any telescope built in our controlled laboratories can ...
Space Exploration
Mar 2, 2015
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