Gemini observations support an unexpected discovery in the galaxy Messier 101. A relatively small black hole (20-30 times the mass of our Sun) can sustain a hugely voracious appetite while consuming material in an efficient and tidy manner – something previously thought impossible.
Gemini's powerful new instrument for studying planets beyond the Solar System, the Gemini Planet Imager (GPI), has successfully received its first starlight for engineering and testing on the night of November 11-12.
Gemini’s flagship local outreach program in Chile, Viaje al Universo, blasted off early last week when Gemini South’s Nancy Levenson addressed nearly 800 students at Colegio San Joaquin.
Observations using the Gemini Near-Infrared Imager (GNIRS) at the Gemini North telescope have confirmed one of the lowest mass free-floating planet known, perhaps the very lowest.
The Gemini Planet Imager (GPI) is fully assembled in the Gemini South instrument lab and begins tesing and integration.
The first refereed science paper based on data from the Gemini Multi-conjugate adaptive optics System (GeMS) demonstrates the effective use of young, lower mass stars to determine the age of a star cluster.
“Celestial Pollution” from meteors like this weekend’s Perseid Meteor Shower sprinkle sodium high up in our atmosphere and give astronomers what they need to see the universe in much greater detail.
Gemini Observatory’s latest instrument, a powerful infrared camera and spectrograph called FLAMINGOS-2 at Gemini South, reveals its potential in a series of striking on-sky commissioning images released today.
Gemini observatory’s rapid-response allows for the detailed study of light from one of the most distant cases of a gamma-ray burst (GRB 130606A) illuminating a galaxy ever observed.
A unique new instrument, called GeMS, at Gemini South in Chile takes the removal of atmospheric distortions (using adaptive optics technology) to a new level. Today’s release of seven ultrasharp, large-field images from the instrument’s first science observations demonstrate its remarkable discovery potential.
Gemini Observatory’s Planet-Finding Campaign finds that, around many types of stars, distant gas-giant planets are rare and prefer to cling close to their parent stars. The impact on theories of planetary formation could be significant.
A new series of images from Gemini Observatory shows Comet C/2012 S1 (ISON) racing toward an uncomfortably close rendezvous with the Sun. In late November the comet could present a stunning sight in the twilight sky and remain easily visible into early December of this year.
Captured within 90 minutes of detection by both Fermi’s Gamma-ray Burst Monitor (GBM) and NASA’s Swift satellite, Gemini’s spectrum of the GRB 130427A surrendered a critical parameter: its distance, using Gemini’s rapid response Target of Opportunity protocols.
The Gemini Observatory newsletter, GeminiFocus, is now quarterly and available as both a downloadable PDF and in an on-line e-reader format compatible with desktop browsers, tablets, e-readers, and smart phones.
Juan Carlos Forte (Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina) and colleagues observed over 500 globular clusters of the giant elliptical galaxy M87 (also known as NGC 4486) and conclude that their chemical abundance distribution is genuinely bimodal
Now in its ninth year, JttU wraps up its annual “Journey Week” on March 15th. During this week Gemini staff joined over 50 other scientists, researchers, and educators in 350 classrooms and almost 8000 students across East Hawai‘i.
A pair of newly discovered stars is the third-closest star system to the Sun, according to a paper that will be published in Astrophysical Journal Letters. The duo is the closest star system discovered since 1916.
Gemini Near-Infrared Spectrograph (GNIRS) observations lead to surprising results on the nature of Type Ia supernovae (SNe Ia). Time-series near-infrared spectra of SN 2011fe hint that more SNe Ia harbor unprocessed carbon than previously believed, and what we thought was the main driver of the luminosity-decline rate Phillips relation may not be correct.
On February 12, 2013 Australian High School Senior Ryan Soares had stars in his eyes during a ceremony celebrating his winning selection for the 2012 Australian Gemini Schools Imaging contest.