Astronomers use giant galaxy cluster as X-ray magnifying lens

Astronomers at MIT and elsewhere have used a massive cluster of galaxies as an X-ray magnifying glass to peer back in time, to nearly 9.4 billion years ago. In the process, they spotted a tiny dwarf galaxy in its very first, ...

The stellar nurseries of distant galaxies

Star clusters are formed by the condensation of molecular clouds, masses of cold, dense gas that are found in every galaxy. The physical properties of these clouds in our own galaxy and nearby galaxies have been known for ...

Image: X-raying a galaxy's stellar remnants

This colourful spread of light specks is in fact a record of extremely powerful phenomena taking place in a galaxy known as Messier 83, or M83. Located some 15 million light-years away, M83 is a barred spiral galaxy, not ...

NASA delivers hardware for ESA dark energy mission

The European Space Agency's Euclid mission, set to launch in 2022, will investigate two of the biggest mysteries in modern astronomy: dark matter and dark energy. A team of NASA engineers recently delivered critical hardware ...

MUSE reveals a glowing ring of light in the distant universe

The MUSE instrument on ESO's Very Large Telescope in Chile has revealed very detailed halos of neutral hydrogen around distant galaxies. A new result zooms on a few such halos, one of them forming a large, almost-complete ...

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