Astronomers have shown how gravitational lensing allows us to see the faintest and most distant galaxies, helping us to understand the origin of the Universe. The first gravitational lens, a ...

In a surprising discovery, astronomers have found a faraway galaxy that doubles as a cosmic "magnifying glass." At 9.6 billion light-years away, it could be the most distant such object known to ...

When you look up into the night sky, you see lots of stars—but all of them are members of our own Milky Way galaxy. With the help of some spacetime-warping science, though, our eyes can now peer much ...

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