Tag Archive for 'Milky Way'

A rippled Milky Way Galaxy may be 50 percent larger than previously estimated. Image credit: Rensselaer Polytechnic Institute.

Our Milky Way Galaxy May Be Larger Than Thought

Mar 11, 2015 by News Staff

According to a new study led by Yan Xu of Rensselaer Polytechnic Institute in Troy, NY, our Galaxy is at least 50 percent larger than is commonly estimated. A...

This image shows the newly-discovered dwarf galaxy Reticulum 2. Image credit: Sergey E. Koposov et al / Dark Energy Survey.

Reticulum 2: Gamma Rays from Dwarf Galaxy May Be Clue on Mysterious Dark Matter

Mar 11, 2015 by News Staff

A team of astronomers, led by Dr Alex Geringer-Sameth of Carnegie Mellon University, has detected gamma rays emanating from the recently discovered dwarf...

This image shows the newly-discovered dwarf galaxy Eridanus 2. Image credit: Sergey E. Koposov et al / Dark Energy Survey.

Astronomers Discover Nine New Satellites of Milky Way Galaxy

Mar 10, 2015 by News Staff

Using the data from the Dark Energy Survey (DES), astronomers have found nine new ultra-faint Milky Way satellites. Based on the morphological properties,...

An artist impression of the mass-transfer phase followed by a double-detonation supernova that leads to the ejection of US 708. While this illustration shows the supernova, bottom center, and the ejected star, left, at the same time, in reality the supernova would have been faded away long before the star reached that position. Image credit: ESA / Hubble / NASA / S. Geier.

US 708: Hypervelocity Star Ejected by Supernova Breaks Galactic Speed Record

Mar 6, 2015 by News Staff

A multinational team of astronomers led by Dr Stephan Geier from the European Southern Observatory in Garching, Germany, has determined that a hypervelocity...

The star cluster Camargo 438. Image credit: D. Camargo / NASA / WISE.

Astronomers Discover Two Very Distant Star Clusters

Mar 3, 2015 by News Staff

Brazilian astronomers using data from NASA’s Wide-field Infrared Survey Explorer have discovered two clusters of stars forming at the very edge of our...

This artist's impression shows the structure of our Milky Way Galaxy, including the location of the spiral arms and other components such as the bulge. Image credit: NASA / JPL-Caltech / ESO / R. Hurt.

Dark Matter May Have Caused Earth’s Cataclysms, Mass Extinctions

Feb 20, 2015 by News Staff

The Solar System’s movement through a dark-matter halo enveloping our Milky Way Galaxy may perturb the orbits of comets and lead to additional heating...

This image shows the globular star cluster Palomar 12. Image credit: ESA / Hubble / NASA.

Hubble Spies Distant Globular Cluster Palomar 12

Feb 16, 2015 by News Staff

The Advanced Camera for Surveys on board NASA’s Hubble Space Telescope has captured a beautiful image of a globular star cluster called Palomar 12. This...

This is an artist's impression of an exoplanet. Image credit: Ron Miller.

Billions of Earth-Like Exoplanets Exist in Our Milky Way Galaxy, Say Scientists

Feb 6, 2015 by News Staff

A group of researchers from Australia and Denmark led by Dr Charley Lineweaver of the Australian National University has calculated that there are hundreds...

This image shows the famous Trifid Nebula to the right of center; it appears as faint and ghostly at these infrared wavelengths when compared to the familiar view at visible wavelengths; this transparency has brought its own benefits - many previously hidden background objects can now be seen clearly; among these are two newly discovered Cepheid variable stars, the first ever spotted on the far side of our Milky Way Galaxy near its central plane. Image credit: ESO / VVV consortium / D. Minniti.

Astronomers Zoom in on Trifid Nebula, Discover Two Distant Cepheids

Feb 4, 2015 by News Staff

A team of astronomers led by Dr István Dékány from Millennium Institute of Astrophysics and the Universidad Católica de Chile, Santiago, Chile, has...

This is an artistic impression of the Kepler-444 planetary system. Image credit: Tiago Campante / Peter Devine.

Kepler-444: Five Exoplanets Found Orbiting 11-Billion-Year-Old Star

Jan 27, 2015 by News Staff

An international team of astronomers headed by Dr Tiago Campante of the University of Birmingham’s School of Physics and Astronomy, UK, has discovered...

This graphic shows how Hubble probed the light from the quasar PDS 456 to analyze the Fermi Bubbles. The quasar's light passed through one of the bubbles; imprinted on that light is information about the outflow's speed, composition, and eventually mass. Image credit: NASA / ESA / A. Field, STScI.

Astronomers Probe Milky Way’s Mysterious Fermi Bubbles

Jan 9, 2015 by News Staff

Astronomers using NASA’s Hubble Space Telescope have measured for the first time the velocity and composition of giant, balloon-like features known...

This image shows the newly discovered dwarf galaxy Kks3. The core of the galaxy is the right hand object at the top center of the image, with its stars spreading out over a large section around it; the left hand of the two objects is a much nearer globular star cluster. Image credit: Dimitry Makarov.

Kks3: Hubble Discovers New Neighbor Galaxy to Milky Way

Dec 23, 2014 by News Staff

A new neighbor of our Milky Way Galaxy has been discovered with the Advanced Camera for Surveys (ACS) instrument on NASA’s Hubble Space Telescope. This...

This Hubble composite image shows a ring of dark matter in the galaxy cluster ZwCl0024+1652; the ring-like structure is evident in the blue map of the cluster's dark matter distribution; the map is superimposed on a Hubble image of the cluster. Image credit: NASA / ESA / M.J. Jee and H. Ford, Johns Hopkins University.

X-Ray Signal from Andromeda, Other Galaxies Could Be Evidence of Dark Matter

Dec 12, 2014 by News Staff

European scientists have detected a mysterious photon emission in X-ray spectra of the Andromeda galaxy, the Draco dwarf galaxy and some other galaxies...

This image shows what the Milky Way Galaxy looked like ten billion years ago. Image credit: SURFsara / J. Bédorf / NVIDIA.

What Our Milky Way Galaxy Looked Like 10 Billion Years Ago

Nov 26, 2014 by News Staff

Using two supercomputers at Oak Ridge National Laboratory and the Swiss National Supercomputing Center, a group of researchers headed by Dr Simon Portegies...

This image shows four globular clusters in the Fornax dwarf spheroidal galaxy, from left to right, top to bottom: Fornax 1, Fornax 2, Fornax 3 and Fornax 5. Image credit: NASA / ESA / S. Larsen, Radboud University, the Netherlands.

Mystery of Globular Star Clusters’ Formation Deepens

Nov 26, 2014 by News Staff

New Hubble Space Telescope observations of globular star clusters in a tiny galaxy called the Fornax dwarf spheroidal galaxy (Fornax dSph) show these objects...

This image shows the supermassive black hole Sgr A* and the region around it. The inset shows Sgr A* and G2. Image credit: NASA / CXC / MIT / F.K. Baganoff et al. / E. Slawik / G. Witzel et al.

Scientists Solve Mystery of Strange Object at Milky Way Galaxy’s Center

Nov 4, 2014 by News Staff

A dusty red object at the heart of our Milky Way Galaxy called G2 is a pair of binary stars that merged together, according to a team of researchers led...

The iso-propyl cyanide molecule and its straight-chain isomer, normal-propyl cyanide, were both detected with the Atacama Large Millimeter/submillimeter Array in the star-forming region Sagittarius B2 (Sgr B2). Sgr A* is a complex radio source at the center of the Milky Way Galaxy. Image credit: MPIfR / A. Weiß / University of Cologne / M. Koerber / A. Belloche.

Iso-Propyl Cyanide Detected in Star-Forming Region Sagittarius B2

Oct 21, 2014 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array have detected an unusual carbon-based molecule called iso-propyl cyanide (i-C3H7CN)...

Some of 22,000 merging galaxies identified within the GAMA survey. Image credit: Simon Driver / Aaron Robotham / ICRAR.

Massive Galaxies Grow by Snacking on Smaller Neighbors

Sep 20, 2014 by News Staff

Astronomers conducting a broad survey of galaxies called Galaxy and Mass Assembly (GAMA) have found that the Universe’s most massive galaxies gain weight...

A density map of part of the Milky Way disk; the axes show galactic latitude and longitude, coordinates that relate to the position of the centre of the Galaxy; the mapped data are the counts of stars detected in i, the longer wavelength broad band of the survey, down to a faint limit of 19th magnitude; although this is just a small section of the full map, it portrays in exquisite detail the complex patterns of obscuration due to interstellar dust. Image credit: Hywel Farnhill / University of Hertfordshire.

New Catalogue of Visible Milky Way Contains 219 Million Stars

Sep 16, 2014 by News Staff

Astronomers using data from the Isaac Newton Telescope on La Palma in the Canary Islands have assembled a catalogue of the visible part of the northern...

A slice of the Laniakea Supercluster in the supergalactic equatorial plane. Our Milky Way Galaxy is located at the black dot at the origin of the supergalactic coordinates system. The colors represent density within this slice, with red for high densities and blue for voids - areas with relatively little matter; individual galaxies are shown as white dots; velocity flow streams within the region gravitationally dominated by Laniakea are shown in white, while dark blue flow lines are away from the Laniakea local basin of attraction; the orange contour encloses the outer limits of these streams, a diameter of about 522 million light-years. Image credit: DP / CEA / Saclay, France.

Laniakea: Milky Way Galaxy Found to Belong to Newly Identified Galactic Supercluster

Sep 4, 2014 by News Staff

An international team of astronomers headed by Dr R. Brent Tully of the University of Hawaii has determined that our Milky Way Galaxy lives in a newly...

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