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The Higgs at Last

After a three-decade search, scientists appear to have found the elusive particle. Its peculiar properties suggest a new era in physics could be about to dawn

By Michael Riordan, Guido Tonelli and Sau Lan Wu

Ghostly Beacons of New Physics

Neutrinos, the strangest beasts in the particle zoo, may soon open the way to unexplored realms

By Martin Hirsch, Heinrich Päs and Werner Porod

Origin of the Universe

Cosmologists are closing in on the ultimate processes that created and shaped the universe

By Michael S. Turner

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

Does Dark Energy Really Exist?

Maybe not. The observations that led astronomers to deduce its existence could have another explanation: our galaxy lies at the center of a giant cosmic void

By Timothy Clifton and Pedro G. Ferreira

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

The (Elusive) Theory of Everything

Physicists have long sought to find one final theory that would unify all of physics. Instead they may have to settle for several

By Stephen Hawking and Leonard Mlodinow

A Quantum Threat to Special Relativity

Entanglement, like many quantum effects, violates some of our deepest intuitions about the world. It may also undermine Einstein's special theory of relativity

By David Z Albert and Rivka Galchen

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

Signature Analysis

Bubble chamber photographs reveal the telltale tracks of exotic subatomic particles


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