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Reality check: Closing the quantum loopholes

23 February 2011

Can the universe really be as weird as quantum theory suggests? Ingenious experiments are coming close to settling the issue, says Anil Ananthaswamy

A measure for the multiverse

3 March 2010

Is our universe just one of many? The idea divides physicists, but now one researcher has found the first hint that the multiverse really exists

The second quantum revolution

20 June 2007

To track down a theory of everything, we might have to accept that the universe only exists when we're looking at it

Curiosity doesn't have to kill the quantum cat

9 May 2007

A landmark experiment hopes to bring Schrödinger's cat back from the brink of death – it could rewrite our understanding of reality

The elephant and the event horizon

25 October 2006

What happens when you throw an elephant into a black hole? The answer may shake the foundations of what we thought we knew about space and time, says Amanda Gefter

Black holes, but not as we know them

19 January 2005

They may be the most fearsome objects in the universe, swallowing everything in their path, but J R Minkel says black holes are misunderstood

Quantum tricks that read your thoughts

1 December 2004

The weird world of quantum entanglement This could change the way the world does business, says Mark Buchanan

Which way is up?

1 October 2004

The quantum world is there to exploit. But before we truly harness its power, there's one small problem to solve

Twisting the light away

11 June 2004

A novel trick with light has got physicists in a spin. Pitch your photon like a corkscrewing curveball and you can push bandwidth through the roof, flummox eavesdroppers and perhaps even talk to aliens.

The trial of little owl

6 September 2002