The events surrounding the Big Bang were so cataclysmic that they left an indelible imprint on the fabric of the cosmos.
The events surrounding the Big Bang were so cataclysmic that they left an indelible imprint on the fabric of the cosmos.
Almost all the light we see in the universe comes from stars which form inside dense clouds of gas in the interstellar medium.
The Andromeda constellation is one of the 88 modern constellations and should not be confused with our neighboring Andromeda Galaxy. The Andromeda constellation is home to the pictured galaxy known as NGC 7640.
Although there are no seasons in space, this cosmic vista invokes thoughts of a frosty winter landscape.
The constellation of Virgo (The Virgin) is especially rich in galaxies, due in part to the presence of a massive and gravitationally-bound collection of over 1300 galaxies called the Virgo Cluster.
New observations from the NASA/ESA Hubble Space Telescope have revealed the intricate structure of the galaxy NGC 4696 in greater detail than ever before.
Spiral galaxy NGC 3274 is a relatively faint galaxy located over 20 million light-years away in the constellation of Leo (The Lion).
This image, taken by the NASA/ESA Hubble Space Telescope's Wide Field Planetary Camera 2, shows a spiral galaxy named NGC 278.
The universe suddenly looks a lot more crowded, thanks to a deep-sky census assembled from surveys taken by NASA's Hubble Space Telescope and other observatories.
Our Milky Way has a densely populated centre -- a feature common to many galaxies, but unique in that it is close enough to study in depth.
The two spiral arms winding towards the bright centre might deceive you into thinking you are looking at a galaxy a bit like our Milky Way.
Using ESO's Very Large Telescope and other telescopes a fossilised remnant of the early Milky Way harboring stars of hugely different ages has been revealed by an international team of astronomers.
In research published today, Australian scientists have taken a critical step towards understanding why different types of galaxies exist throughout the universe.
A fossilised remnant of the early Milky Way harbouring stars of hugely different ages has been revealed by an international team of astronomers.
An international team of astronomers, including Carnegie's Eric Persson, has charted the rise and fall of galaxies over 90 percent of cosmic history.
NASA's Hubble Space Telescope has uncovered two tiny dwarf galaxies that have wandered from a vast cosmic wilderness into a nearby "big city" packed with galaxies.
This NASA/ESA Hubble Space Telescope image reveals the vibrant core of the galaxy NGC 3125.
Astronomers at the University of Michigan's College of Literature, Science, and the Arts (LSA) discovered for the first time that the hot gas in the halo of the Milky Way galaxy is spinning in the same direction and at comparable speed as the galaxy's disk.
A team of hundreds of physicists and astronomers have announced results from the largest-ever, three-dimensional map of distant galaxies.
About 250 million light-years away, there's a neighborhood of our universe that astronomers had considered quiet and unremarkable.
This NASA/ESA Hubble Space Telescope image reveals the iridescent interior of one of the most active galaxies in our local neighborhood -- NGC 1569, a small galaxy located about eleven million light-years away in the constellation of Camelopardalis (The Giraffe).
This new image from the NASA/ESA Hubble Space Telescope shows a cosmic tadpole, with its bright head and elongated tail, wriggling through the inky black pool of space.
Galaxies "waste" large amounts of heavy elements generated by star formation by ejecting them up to a million light years away into their surrounding halos and deep space, according to a new study led by the University of Colorado Boulder.
Together with irregular galaxies, spiral galaxies make up approximately 60 percent of the galaxies in the local universe.
Discovered in 1784 by the German-British astronomer William Herschel, NGC 4394 is a barred spiral galaxy situated about 55 million light-years from Earth.
Astronomers at Swinburne University of Technology, Melbourne, Australia, have discovered an unusually shaped structure in two nearby disc galaxies.
ESA's Herschel mission releases today a series of unprecedented maps of star-forming hubs in the plane of our Milky Way galaxy.
At first glance, this NASA/ESA Hubble Space Telescope image seems to show an array of different cosmic objects, but the speckling of stars shown here actually forms a single body a nearby dwarf galaxy known as Leo A.
Subtle distortions hidden in ALMA's stunning image of the gravitational lens SDP.81 are telltale signs that a dwarf dark galaxy is lurking in the halo of a much larger galaxy nearly 4 billion light-years away.
Peering deep into the dusty heart of our Milky Way galaxy using infrared vision, NASA's Hubble Space Telescope reveals a rich tapestry of more than half a million stars.
At first glance, this cosmic kaleidoscope of purple, blue and pink offers a strikingly beautiful and serene snapshot of the cosmos.
Hundreds of hidden nearby galaxies have been studied for the first time, shedding light on a mysterious gravitational anomaly dubbed the Great Attractor.
An international team led by a researcher from Hiroshima University has succeeded in revealing the detailed structure of a massive ionized gas outflow streaming from the starburst galaxy NGC 6240.
ESA's XMM-Newton has found a wind of high-speed gas streaming from the centre of a bright spiral galaxy like our own that may be reducing its ability to produce new stars.
Astronomers have used data from three of NASA's Great Observatories to make the most detailed study yet of an extremely massive young galaxy cluster.
Proud parents chart the growth of their children, but astronomers from the Sloan Digital Sky Survey (SDSS) have taken on a bigger task: charting the growth of our own Milky Way.
This NASA/ESA Hubble Space Telescope image shows the spiral galaxy NGC 4845, located over 65 million light-years away in the constellation of Virgo (The Virgin).
NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, has captured the best high-energy X-ray view yet of a portion of our nearest large, neighboring galaxy, Andromeda.
Black holes have shown that they too can lose a lot of the weight of the stars that surround them.
This image, taken with the Wide Field Planetary Camera 2 on board the NASA/ESA Hubble Space Telescope, shows the galaxy NGC 6052, located around 230 million light-years away in the constellation of Hercules.
Galaxy 1068 is shown in visible light and X-rays in this composite image.
The Andromeda galaxy (or M31) is the massive galaxy nearest to us, and it is an excellent laboratory to study the characteristics and the history of great galactic spirals such as our own Milky Way.
Astronomers discovered a nest of monstrous baby galaxies 11.5 billion light-years away using the Atacama Large Millimeter/submillimeter Array (ALMA).
Astronomers harnessing the combined power of NASA's Hubble and Spitzer space telescopes have found the faintest object ever seen in the early universe.
ESA's XMM-Newton X-ray observatory has revealed three massive filaments of hot gas flowing towards a cluster of galaxies, uncovering a portion of the cosmic skeleton that pervades the entire Universe.
This curious galaxy -- only known by the seemingly random jumble of letters and numbers 2MASX J16270254+4328340 -- has been captured by the NASA/ESA Hubble Space Telescope dancing the crazed dance of a galactic merger.
Just counting the number of galaxies in a patch of sky provides a way to test astronomers' theories of galaxy formation and evolution.
Astronomers at Yale and Harvard have found a galaxy with a heartbeat -- and they've taken its pulse.
Using NASA's Hubble Space Telescope to conduct a "cosmic archaeological dig" at the very heart of our Milky Way galaxy, astronomers have uncovered the blueprints of our galaxy's early construction phase.
Using a sample of 4,700 blue horizontal-branch stars from the Sloan Digital Sky Survey, the research team showed that the oldest stars are concentrated in the central region of the galaxy, confirming predictions from numerical simulations of galaxy assembly.
Astronomers at the Ruhr-Universität Bochum (RUB) have compiled the largest astronomical image to date
This image shows the galaxy Messier 94, which lies in the small northern constellation of the Hunting Dogs, about 16 million light-years away.
Galaxies forming stars at extreme rates nine billion years ago were more efficient than average galaxies today, researchers find.
Galaxy clusters are often described by superlatives. After all, they are huge conglomerations of galaxies, hot gas, and dark matter and represent the largest structures in the Universe held together by gravity.
This new image of the rose-coloured star forming region Messier 17 was captured by the Wide Field Imager on the MPG/ESO 2.2-metre telescope at ESO's La Silla Observatory in Chile.
The center of our Milky Way galaxy is a mysterious place. Not only is it thousands of light-years away, it's also cloaked in so much dust that most stars within are rendered invisible.
It is known today that merging galaxies play a large role in the evolution of galaxies and the formation of elliptical galaxies in particular.
The Sculptor Dwarf Galaxy is pictured in this new image from the Wide Field Imager camera.
The arrangement of the spiral arms in the galaxy Messier 63, seen here in an image from the NASA/ESA Hubble Space Telescope, recall the pattern at the center of a sunflower. So the nickname for this cosmic object the Sunflower Galaxy is no coincidence.
Astronomers have discovered a rare beast of a galaxy cluster whose heart is bursting with new stars.
A nearby dwarf galaxy poses an intriguing mystery: How is it able to form brilliant star clusters without the dusty, gas-rich environments found in larger galaxies?
This Hubble Space Telescope image shows Messier 96, a spiral galaxy just over 35 million light-years away in the constellation of Leo (The Lion).
A team of Caltech researchers that has spent years searching for the earliest objects in the universe now reports the detection of what may be the most distant galaxy ever found.
In a survey of NASA's Hubble Space Telescope images of 2,753 young, blue star clusters in the neighboring Andromeda galaxy (M31), astronomers have found that M31 and our own galaxy have a similar percentage of newborn stars based on mass.
Deeply immersed in this huge stellar nursery are three clusters of hot young stars -- only a few million years old -- which glow brightly in ultraviolet light.
This new image of powerful remnants of dead stars and their mighty action on the surrounding gas from ESA's XMM-Newton X-ray observatory reveals some of the most intense processes taking place at the centre of our galaxy, the Milky Way.
Astronomers have uncovered a unique process for how the universe's largest elliptical galaxies continue making stars long after their peak years of star birth.
Two undergraduates at San Jose State University have discovered two galaxies that are the densest known.
Astronomers have long known that powerful cosmic winds can sometimes blow through galaxies, sweeping out interstellar material and stopping future star formation. Now they have a clearer snapshot of how it happens.
This little-known galaxy, officially named J04542829-6625280, but most often referred to as LEDA 89996, is a classic example of a spiral galaxy.
The ghostly shells of galaxy ESO 381-12 are captured here in a new image from the NASA/ESA Hubble Space Telescope, set against a backdrop of distant galaxies.
Scientists have revealed a galaxy five billion light-years away, using a new hi-tech telescope in remote Western Australia.
A group of researchers from the Stony Brook University and the National Astronomical Observatory of Japan has discovered 854 "ultra dark galaxies" in the Coma Cluster by analyzing archival data from the Subaru Telescope.
Using the Hubble Space Telescope's infrared vision, astronomers have unveiled some of the previously hidden origins of quasars, the brightest objects in the universe.
Astronomers making a detailed, multi-telescope study of a nearby galaxy have discovered a magnetic field coiled around the galaxy's main spiral arm.