Tag: Galaxies

The Milky Way’s last major act of galactic cannibalism was surprisingly recent

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New findings from the Gaia space telescope indicate the Milky Way may have cannibalized a small galaxy not too long ago, cosmically speaking. In fact, the last major collision between our galaxy and another seems to have occurred billions of years later than previously suspected. The Milky Way has been long understood to have grown via a series of violent collisions, which see smaller galaxies ripped apart by the immense gravitational influence of our solar system’s spiral home. These collisions distribute stars from the devoured galaxy across the halo that…

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Hubble Views the Lights of a Galactic Bar

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2 min read Hubble Views the Lights of a Galactic Bar This Hubble Space Telescope image reveals details in the barred spiral galaxy NGC 4731. ESA/Hubble & NASA, D. Thilker This new image from the NASA/ESA Hubble Space Telescope shows the broad and sweeping spiral galaxy NGC 4731. It lies in the constellation Virgo and is located 43 million light-years from Earth. This highly detailed image uses data collected from six different filters. The abundance of color illustrates the galaxy’s billowing clouds of gas, dark dust bands, bright pink star-forming…

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Hubble Captures a Bright Spiral in the Queen’s Hair

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2 min read Hubble Captures a Bright Spiral in the Queen’s Hair This Hubble Space Telescope image showcases the bright spiral galaxy NGC 4689. ESA/Hubble & NASA, D. Thilker, J. Lee, and the PHANGS-HST Team This NASA/ESA Hubble Space Telescope image shows the jewel-bright spiral galaxy NGC 4689, which lies 54 million light-years from Earth in the constellation Coma Berenices. This constellation has the distinction of being the only one of the 88 constellations officially recognized by the International Astronomical Union (IAU) as one named after the historical figure, Queen…

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Amateur astronomer finds 5 fascinating new galaxies — and they’re now named after him

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An amateur astronomer from Italy has discovered five new dwarf galaxies around a distant spiral galaxy — a spiral that’s one of the largest galaxies in the sky over Earth. His name is Giuseppe Donatiello, and those five dwarf galaxies are now named Donatiello V, Donatiello VI, Donatiello VII, Donatiello VIII, and Donatiello IX (Do V, Do VI, Do VII, Do VIII, and Do IX). “Out of eleven discoveries, nine galaxies bear my name. To my knowledge, I am the first and only amateur astronomer to have galaxies named after them,”…

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Hubble Views Cosmic Dust Lanes

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2 min read Hubble Views Cosmic Dust Lanes This Hubble Space Telescope image showcases a nearly edge-on view of the lenticular galaxy NGC 4753. ESA/Hubble & NASA, L. Kelsey Featured in this new image from the NASA/ESA Hubble Space Telescope is a nearly edge-on view of the lenticular galaxy NGC 4753. Lenticular galaxies have an elliptical shape and ill-defined spiral arms. This image is the object’s sharpest view to date, showcasing Hubble’s incredible resolving power and ability to reveal complex dust structures. NGC 4753 resides around 60 million light-years from…

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Hubble Glimpses a Star-Forming Factory

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2 min read Hubble Glimpses a Star-Forming Factory This image from the NASA/ESA Hubble Space Telescope highlights the spiral galaxy UGC 9684. The celestial object showcased in this image from the NASA/ESA Hubble Space Telescope is the spiral galaxy UGC 9684, which lies around 240 million light-years from Earth in the constellation Boötes. This image shows an impressive example of several classic galactic features, including a clear bar in the galaxy’s center, and a halo surrounding its disk. The data for this Hubble image came from a study of Type-II…

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World’s largest visible light telescope spies a galaxy cluster warping spacetime

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When astronomers look at galaxies, they’re often conducting a sort of archaeology. Well, cosmic archeology.  Basically, by examining what a galaxy looks like and how it interacts with its nearest galactic neighbors, it’s possible to reconstruct that galaxy’s history. And one tool that astronomers can use for such work is the VLT Survey Telescope (VST), the world’s largest visible-light telescope. Now, the VST has released a triptych of images depicting some of those distant galaxies necessary in uncovering galactic pasts. One image depicts ESO 510-G13, a galaxy 150 million light-years…

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Hubble Hunts Visible Light Sources of X-Rays

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2 min read Hubble Hunts Visible Light Sources of X-Rays This NASA/ESA Hubble Space Telescope image features the dwarf galaxy IC 776. ESA/Hubble & NASA, M. Sun This NASA/ESA Hubble Space Telescope image features the dwarf galaxy IC 776. This swirling collection of new and old stars is located in the constellation Virgo, in the Virgo galaxy cluster, 100 million light-years from Earth. Although IC 776 is a dwarf galaxy, it’s also classified as a SAB-type or ‘weakly barred’ spiral. This highly detailed Hubble view demonstrates that complexity. IC 776…

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Hubble Spots a Magnificent Barred Galaxy

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This NASA/ESA Hubble Space Telescope images showcases the galaxy NGC 2217. ESA/Hubble & NASA, J. Dalcanton; Acknowledgement: Judy Schmidt (Geckzilla) The magnificent central bar of NGC 2217 (also known as AM 0619-271) shines bright in the constellation of Canis Major (The Greater Dog), in this image taken by the NASA/ESA Hubble Space Telescope. Roughly 65 million light-years from Earth, this barred spiral galaxy is a similar size to our Milky Way at 100,000 light-years across. Many stars are concentrated in its central region forming the luminous bar, surrounded by a set of tightly wound spiral arms.…

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Buried in the Cat’s Paw Nebula lies one of the largest space molecules ever seen

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Scientists have discovered a hitherto unknown space molecule while investigating a relatively nearby region of intense star birth, a cosmic spot about 5,550 light-years away. It’s part of the Cat’s Paw Nebula, also known as NGC 6334. The team, led by Zachary Fried, a graduate student at the Massachusetts Institute of Technology (MIT), examined a section of the nebula known as NGC 6334I with the  Atacama Large Millimeter/submillimeter Array (ALMA). This revealed the presence of a complex molecule known as 2-methoxyethanol, which had never been seen before in the natural world, though…

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