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Super Supernovae

The largest stars die in explosions more powerful than anyone thought possible—some triggered in part by the production of antimatter

By Avishay Gal-Yam

Portrait of a Black Hole

By adapting a global network of telescopes, astronomers will soon get their first look ever at the dark silhouette of a black hole

By Avery E. Broderick and Abraham Loeb

Naked Singularities

The black hole has a troublesome sibling, the naked singularity. Physicists have long thought—hoped—it could never exist. But could it?

By Pankaj S. Joshi

Black Stars, Not Holes

Quantum effects may prevent true black holes from forming and give rise instead to dense entities called black stars

By Carlos Barcel*amp*oacute;, Stefano Liberati, Sebastiano Sonego and Matt Visser

Beyond the Quantum Horizon

Once viewed as imposing absolute limits on knowledge and technology, quantum theory is now expanding the power of computers and the vistas of the mind

By David Deutsch and Artur Ekert

Bad Boy of Physics

Leonard Susskind rebelled as a teen and never stopped. Today he insists that reality may forever be beyond reach of our understanding

By Peter Byrne

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