The search goes on: LIGO upgrade narrows the hunt for gravitational waves
Nearly a century after Einstein predicted the existence of gravitational waves, the long effort to detect them directly is heating up. In our cover feature, David Appell explains how a major upgrade at the Laser Interferometry Gravitational-wave Observatory may soon bring the hunt to a successful close. Also in this issue, theoretical physicist Vitor Cardoso from the University of Lisbon explains his efforts to find out how physics breakthroughs – both big and small – really emerge. It turns out that how new thoughts arise is often much more of a communal activity than we might think.
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