Tag: Galaxies

The Milky Way’s 2 biggest satellite galaxies are oddly lonely, study finds

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The Milky Way’s system of small, orbiting satellite galaxies is quite unusual, a new 12-year study of other galaxies in the local universe has found.  The Satellites Around Galactic Analogs (SAGA) survey is being conducted by a small group of astronomers to learn how the Milky Way and its little retinue of dwarf satellite galaxies compares to other galaxy systems. “The Milky Way’s satellite population is a unique combination of small satellites containing only older stars, and its two largest satellites, which are actively forming new stars,” says Marla Geha,…

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Hubble Captures Stellar Nurseries in a Majestic Spiral

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Hubble Space Telescope Home Hubble Captures Stellar… Hubble Space Telescope Hubble Home Overview About Hubble The History of Hubble Hubble Timeline Why Have a Telescope in Space? Hubble by the Numbers At the Museum FAQs Impact & Benefits Hubble’s Impact & Benefits Science Impacts Cultural Impact Technology Benefits Impact on Human Spaceflight Astro Community Impacts Science Hubble Science Science Themes Science Highlights Science Behind Discoveries Hubble’s Partners in Science Universe Uncovered Explore the Night Sky Observatory Hubble Observatory Hubble Design Mission Operations Missions to Hubble Hubble vs Webb Team Hubble…

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Hubble Lights the Way with New Multiwavelength Galaxy View

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Hubble Space Telescope Home Hubble Lights the Way with New… Hubble Space Telescope Hubble Home Overview About Hubble The History of Hubble Hubble Timeline Why Have a Telescope in Space? Hubble by the Numbers At the Museum FAQs Impact & Benefits Hubble’s Impact & Benefits Science Impacts Cultural Impact Technology Benefits Impact on Human Spaceflight Astro Community Impacts Science Hubble Science Science Themes Science Highlights Science Behind Discoveries Hubble’s Partners in Science Universe Uncovered Explore the Night Sky Observatory Hubble Observatory Hubble Design Mission Operations Missions to Hubble Hubble vs…

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Gas and stars ‘stolen’ from galaxy in striking European Southern Observatory photo and video

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A galaxy is robbed of its gas and stars in a new image from the European Southern Observatory (ESO).  The spiral galaxy, called NGC 3312, lies within a large cluster known as Hydra I. Located over 160 million light-years from Earth, this cluster contains hundreds of galaxies, the largest of which is NGC 3312.  Using the ESO’s VLT Survey Telescope (VST) at the Paranal Observatory in the Atacama Desert of northern Chile, astronomers captured an up-close view of the spiral galaxy, which appears to be “spilling its contents into the…

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Hubble Examines a Spiral Star Factory

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Hubble Space Telescope Home Hubble Examines a Spiral Star… Missions Hubble Home Overview About Hubble The History of Hubble Hubble Timeline Why Have a Telescope in Space? Hubble by the Numbers At the Museum FAQs Impact & Benefits Hubble’s Impact & Benefits Science Impacts Cultural Impact Technology Benefits Impact on Human Spaceflight Astro Community Impacts Science Hubble Science Science Themes Science Highlights Science Behind Discoveries Hubble’s Partners in Science Universe Uncovered Explore the Night Sky Observatory Hubble Observatory Hubble Design Mission Operations Missions to Hubble Hubble vs Webb Team Hubble…

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Hubble telescope spies a sparkling ‘cosmic fossil’ 3 million light-years away (image)

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The Hubble Space Telescope has uncovered an isolated cosmic fossil, which may offer new insight on galaxy formation.  Located about 3 million light-years from Earth, the Tucana Dwarf galaxy sits at the far edge of the Local Group of galaxies, which includes our Milky Way galaxy. This galaxy is home to older stars, leading researchers to believe it may contain traces from the early universe, according to a statement from NASA.  “Having such pristine properties enables scientists to use the Tucana Dwarf as a cosmic fossil,” NASA officials said in…

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Hubble Zooms into the Rosy Tendrils of Andromeda

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2 min read Hubble Zooms into the Rosy Tendrils of Andromeda NASA, ESA, M. Boyer (Space Telescope Science Institute), and J. Dalcanton (University of Washington); Image Processing: Gladys Kober (NASA/Catholic University of America) Clusters of stars set the interstellar medium ablaze in the Andromeda Galaxy about 2.5 million light-years away. Also known as M31, Andromeda is the Milky Way’s closest major galaxy. It measures approximately 152,000 light-years across and, with almost the same mass as our home galaxy, is headed for a collision with the Milky Way in 2-4 billion…

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Hubble Pinpoints a Dim, Starry Mini-galaxy

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The Pegasus Dwarf spheroidal galaxy, also known as Andromeda VI, is one of at least 13 dwarf galaxies that orbit the Andromeda galaxy. NASA, ESA, and D. Weisz (University of California – Berkeley); Processing: Gladys Kober (NASA/Catholic University of America) A glittering collection of stars shines against a background of much more distant galaxies in this view from NASA’s Hubble Space Telescope of the Pegasus Dwarf spheroidal galaxy, also known as Andromeda VI.  The Andromeda galaxy, also known as Messier 31, is the Milky Way’s closest grand spiral galaxy neighbor,…

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Hubble Reaches a Lonely Light in the Dark

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2 min read Hubble Reaches a Lonely Light in the Dark NASA, ESA, C. Gallart (Instituto de Astrofisica de Canarias), A. del Pino Molina (Centro de Estudios de Fisica del Cosmos de Aragon), and R. van der Marel (Space Telescope Science Institute); Image Processing: Gladys Kober (NASA/Catholic University of America) A splatter of stars glows faintly at almost 3 million light-years away in this new image from NASA’s Hubble Space Telescope. Known as the Tucana Dwarf for lying in the constellation Tucana, this dwarf galaxy contains a loose bundle of…

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Will our galaxy really collide with Andromeda? Maybe not

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Astronomers have long considered it inevitable that our home galaxy, the Milky Way, will merge with the neighboring Andromeda galaxy within the next 5 billion years. However, a new simulation suggests the chance of this clash happening comes down to a coin flip — at least, within the next 10 billion years. “I would say that the popular narrative is diminished, but not eliminated,” Manasvi Lingam, an astrobiologist at Florida Institute of Technology who was not involved with the new study, told Space.com. At about 2.5 million light-years from our…

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