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Image: Northwestern University

Birth of a black hole or neutron star captured for first time

Scientists at the Northwestern University have captured the mysteriously bright object that burst in the northern sky this summer. Dubbed AT2018cow or “The Cow,” the object...
Images taken by the ATLAS telescopes before the explosion (middle) and after it (left) show the sudden brightening in the galaxy CGCG 137-068. The far-right image shows the difference between the two. (Stephen Smartt/ATLAS)

Astronomers puzzled by cow in the sky

In space, stars go supernova in brilliant bursts of light. Now, astronomers have detected a mysterious cataclysm in a neighboring galaxy. This puzzled astronomers...