Repulsive gravity as an alternative to dark energy (Part 2: In the quantum vacuum)
Is the universe a bubble? Let's check
Perimeter Associate Faculty member Matthew Johnson and his colleagues are working to bring the multiverse hypothesis, which to some sounds like a fanciful tale, firmly into the realm of testable science.
New theory suggests way to teleport energy long distances
Ex nihilo: Dynamical Casimir effect in metamaterial converts vacuum fluctuations into real photons
New mathematical model links space-time theories
Researchers at the University of Southampton have taken a significant step in a project to unravel the secrets of the structure of our Universe.
Can dark energy be explained by symmetrons?
The day the universe froze: New dark energy model includes cosmological phase transition
Imagine a time when the entire universe froze. According to a new model for dark energy, that is essentially what happened about 11.5 billion years ago, when the universe was a quarter of the size it is today.
Superconductors face the future
Futuristic ideas for the use of superconductors, materials that allow electric current to flow without resistance, are myriad: long-distance, low-voltage electric grids with no transmission loss; fast, magnetically ...
Lower-cost solar cells to be printed like newspaper, painted on rooftops
Solar cells could soon be produced more cheaply using nanoparticle "inks" that allow them to be printed like newspaper or painted onto the sides of buildings or rooftops to absorb electricity-producing sunlight.
Drinking water from air humidity
Cracks permeate the dried-out desert ground, the landscape bears testimony to the lack of water. But even here, where there are no lakes, rivers or groundwater, considerable quantities of water are stored ...
Dark energy hides behind phantom fields
Quintessence and phantom fields, two hypotheses formulated using data from satellites, such as Planck and WMAP, are among the many theories that try to explain the nature of dark energy. Now researchers from ...
We've just started work on the technology to power a Star-Trek style replicator
Who has never dreamt of having a machine that can materialise any object we need out of thin air at the push of a button? Such machines only exist in the minds of science fiction enthusiasts and the film ...
The mysterious dark energy that speeds the universe's rate of expansion
The nature of dark energy is one of the most important unsolved problems in all of science. But what, exactly, is dark energy, and why do we even believe that it exists?
Shining new light on dark energy with galaxy clusters
(PhysOrg.com) -- Scientists' murky understanding of dark energy may have just gotten a little clearer, thanks to recent work by a team of researchers that includes astrophysicist Neelima Sehgal of the Kavli ...