Gemini News Archive

Korean Astronomers Dissect a Fragmented Asteroid

A team of Korean astronomers uses imaging from GMOS on Gemini North to characterize the rotation of active asteroid P/2010 A2’s largest fragment. The observations show that this faint and tiny asteroid, which underwent a mass ejection episode, is slowly rotating.

A Partly-cloudy Exoplanet

The first exoplanet discovered using the Gemini Planet Imager (GPI) is a young, cool object between 2–10 Jupiter masses. Research hints that the formation of this exoplanet is likely due to the collapse of icy disk materials followed by the accretion of a thick gas atmosphere.

A Partly-cloudy Exoplanet

Gemini Observatory Astronomer Meg Schwamb to be Awarded Sagan Medal

Gemini Observatory astronomer Meg Schwamb is this year’s recipient of the Carl Sagan Medal for Excellence in Public Communication in Planetary Science. Schwamb is being honored for the creation and development of new tools and venues to facilitate planetary science communication.

Gemini Observatory Astronomer Meg Schwamb to be Awarded Sagan Medal

Dr. Laura Ferrarese Appointed Interim Director of Gemini Observatory

On July 1, 2017, Dr. Laura Ferrarese begins a one-year term as Interim Director of the Gemini Observatory.

Dr. Laura Ferrarese Appointed Interim Director of Gemini Observatory

Gemini Tracks Distant Star Cluster with Adaptive Optics

Researchers combine images from Gemini South’s wide-field adaptive optics system (GeMS/GSAOI) with data from the Hubble Space Telescope (HST) to determine the proper motion of a distant cluster of stars.

Gemini Tracks Distant Star Cluster with Adaptive Optics

OCTOCAM Looks Toward a New Era of Discovery

Gemini Observatory announces the development of a major new facility-class broadband optical and near-infrared imager and spectrograph named OCTOCAM.

Planetoid Pairs Reveal a Kinder, Gentler Neptune

The Gemini/CFHT observations help address ongoing questions and debates among scientists about Neptune’s migration from its primordial formation orbital location to its current locale.

Planetoid Pairs Reveal a Kinder, Gentler Neptune

β Pictoris b: An Exoplanet With the Atmosphere of a Brown Dwarf

Using the Gemini Planet Imager (GPI), a team of astronomers led by J. Chilcote (University of Toronto) found that the low mass stellar companion β Pictoris b is about 13 times more massive than Jupiter with a surface temperature of about 1720 K.

β Pictoris b: An Exoplanet With the Atmosphere of a Brown Dwarf

First evidence of rocky planet formation in Tatooine system

Using the Gemini Multi-Object Spectrograph (GMOS) on Gemini South, a team led by Jay Farihi (University College London) found, for the first time, a dust and debris disk surrounding a binary star with a white dwarf as a substellar companion. To date, almost all of the known planetary systems which include a white dwarf are single stars.

First evidence of rocky planet formation in Tatooine system

Base Facility Operations on Two Hemispheres!

Gemini reached another significant milestone with the celebration of the official handover to Base Facility Operations (BFO) at Gemini South. About a year ago, Gemini North reached the same milestone, so now both Gemini telescopes operate routinely from the base facilities in La Serena, Chile and Hilo, Hawai‘i.

Base Facility Operations on Two Hemispheres!

Gemini Explores Fading Active Galactic Nuclei ID'd by Galaxy Zoo

Gemini follows up on candidate galaxies with fading active galactic nuclei (AGN) first identified thanks to the Galaxy Zoo citizen science project. The gas clouds around these fading AGN are dominated by rotation, unlike those around radio-loud AGN, which are outflows coming from the nuclei.

Gemini Explores Fading Active Galactic Nuclei ID'd by Galaxy Zoo

Exploring a Fast Radio Burst in Three Dimensions

Gemini Observatory provides critical rapid follow up observations of a Fast Radio Burst – one of modern astronomy's greatest enigmas. These observations provide the first details on a burst's distant extragalactic host.

Exploring a Fast Radio Burst in Three Dimensions

The Beautiful Messiness of Star Birth

A new image released today by the Gemini Observatory offers a deep, revealing view into an active stellar nursery known as GGD 27. The infrared view peels back layers of obscuring gas and dust to unshroud the inner workings of star formation.

The Beautiful Messiness of Star Birth

Untangling a Complex Young Stellar System

Using spectroscopic data from the Gemini North telescope, researchers have probed a complex binary T Tauri system that hints at a hidden planetary body shrouded deep within a stellar environment at the late stages of formation.

Untangling a Complex Young Stellar System

Are All Stars Created Equal?

Astronomers using critical observations from the Gemini Observatory have found the strongest evidence yet that the formation of more massive stars follow a path similar to their lower-mass brethren - but on steroids!

Are All Stars Created Equal?

Galaxies Old and New Share a Common Thread

A team using the Gemini Multi-Conjugate Adaptive Optics System (GeMS) with the Gemini South Adaptive Optics Imager (GSAOI) have, for the first time, measured the stellar masses relative to the physical sizes of several galaxies in a cluster at a lookback time of about 5 billion years.

Galaxies Old and New Share a Common Thread

Volcanoes on Io: Long-term Tracking with Adaptive Optics

Jupiter’s moon Io is the most volcanically active world in our Solar System. Now, the longest series of frequent high-resolution tracking of Io’s thermal emission is providing insights on Io’s volcanoes thanks to a powerful joint observation program between the Gemini North telescope (with NIRI+Altair instrument) and the W.M. Keck Observatory.

Volcanoes on Io: Long-term Tracking with Adaptive Optics

Cluster’s Advanced Age in Razor-sharp Focus

An international team of astronomers, using the Gemini Multi-conjugate adaptive optics System (GeMS) and the high resolution camera GSAOI, brought the ancient globular cluster NGC 6624 into razor-sharp focus and determined its age with very high accuracy - a challenging observation even from space.

Mysterious “Blobs” Can be Closer Than We Thought

Astronomers studying a mysterious phenomenon known as Lyman-alpha blobs (LABs) have discovered several of these high-energy objects in galaxies that are much closer than previously known. The discovery is significant because these closer specimens are much easier to study, and because they live at a time when the Universe was much older and more mature, allowing astronomers to study their evolution with cosmic time

Gemini Images Galaxy That Is 99.99 Percent Dark Matter

Using the W. M. Keck Observatory and the Gemini North telescope – both on Maunakea, Hawai‘i – astronomers found a galaxy whose mass is almost entirely Dark Matter.

Gemini Images Galaxy That Is 99.99 Percent Dark Matter

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