Astronomers at the University of Chicago, 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, ...
Headband magnifiers are convenient tools for painting miniatures, embroidery, puzzles, and more, keeping hands free and providing a closer look at fine details. To pick the best headband magnifier, ...
image: This color composite image of the Hubble Ultra Deep Field was created using data taken by its WFC3 and ACS instruments. The green circles mark the locations of candidate galaxies at redshifts ...
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