Hubble Frontier Field Abell 2744 This long-exposure image from NASA's Hubble Space Telescope of massive galaxy cluster Abell 2744 is the deepest ever made of any cluster of galaxies. It shows some of the faintest and youngest galaxies ever detected in space. Image credit: NASA/ESA/STScI

Curious Kids: Where are all the other galaxies hidden?

Curious Kids: Where are all the other galaxies hidden? The other galaxies are there, but they are hiding a very long way away. www.shutterstock.com Lisa…

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The Sombrero galaxy reveals the extremes of age and shape. NASA/ESA and The Hubble Heritage Team (STScI/AURA)

From pancakes to soccer balls, new study shows how galaxies change shape as they age

From pancakes to soccer balls, new study shows how galaxies change shape as they age The Sombrero galaxy reveals the extremes of age and shape.…

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An artist’s impression of the predicted merger between our Milky Way (right) and the neighboring Andromeda galaxy (left). So which galaxy will dominate? NASA; ESA; Z. Levay and R. van der Marel, STScI; T. Hallas; and A. Mellinger

When galaxies collide, size matters if you want to know the fate of our Milky Way

When galaxies collide, size matters if you want to know the fate of our Milky Way An artist’s impression of the predicted merger between our…

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This image of the spiral galaxy NGC 3344, located about 20 million light-years from Earth, is a composite of images taken through seven different filters. They cover wavelengths from the ultraviolet to the optical and the near-infrared. Together they create a detailed picture of the galaxy and allow astronomers to study many different aspects of it. Credit: ESA/Hubble, NASA

A Lonely Beauty

A Lonely Beauty Beauty, grace, mystery — this magnificent spiral galaxy has all the qualities of a perfect galactic Valentine. Captured by the NASA/ESA Hubble…

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Centaurus A. : X-ray: NASA/CXC/SAO; Optical: Rolf Olsen; Infrared: NASA/JPL-Caltech

Dance of galaxies challenges current thinking on cosmology

Dance of galaxies challenges current thinking on cosmology Centaurus A. : X-ray: NASA/CXC/SAO; Optical: Rolf Olsen; Infrared: NASA/JPL-Caltech Andreea Font, Liverpool John Moores University Scientists…

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NGC 5256 is a pair of galaxies in its final stage of merging. It was previously observed by Hubble as part of a collection of 59 images of merging galaxies, released on Hubble’s 18th anniversary on 24 April 2008. The new data make the gas and dust being whirled around inside and outside the galaxy more visible than ever before. This image is composed of data gathered with the Advanced Camera for Surveys and the Wide-Field Camera 3. Credit: ESA/Hubble, NASA

Dawn of a galactic collision

Dawn of a galactic collision A riot of colour and light dances through this peculiarly shaped galaxy, NGC 5256. Its smoke-like plumes are flung out…

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NASA's Nuclear Spectroscope Telescope Array, or NuSTAR, has identified a candidate pulsar in Andromeda -- the nearest large galaxy to the Milky Way. This likely pulsar is brighter at high energies than the Andromeda galaxy's entire black hole population. Credits: NASA/JPL-Caltech/GSFC/JHU

Andromeda’s Bright X-Ray Mystery Solved by NuSTAR

Andromeda’s Bright X-Ray Mystery Solved by NuSTAR The Milky Way’s close neighbor, Andromeda, features a dominant source of high-energy X-ray emission, but its identity was…

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