Tag Archives: Cosmology

Hawking offers new solution to ‘black hole information paradox’

Addressing a current controversy in physics about information in black holes, “I propose that the information is stored not in the interior of the black hole as one might expect, but on its boundary, the event horizon.”

The event horizon is a boundary around a black hole beyond which events cannot affect an outside observer, also known as “the point of no return” — where gravitational pull becomes so great as to make escape impossible.

Hawking is now suggesting that the information about any incoming particles passing through this event horizon is translated into a 2D hologram. “The idea is the super-translations are a hologram of the ingoing particles,” he said. “Thus they contain all the information that would otherwise be lost.”

Quantum world record smashed

Qubits survive at room temperature for a world-record 39 minutes A normally fragile quantum state has been shown by Oxford University researchers to survive at room temperature for a world record 39 minutes. An artistic rendition of a “bound exciton” quantum state used to prepare and read out information stored in the form of quantum […]

Why don’t we have fusion yet?

The preamplifiers of the National Ignition Facility. The unified lasers deliver 1.8 megajoules of energy and 500 terawatts of power — 1,000 times more than the United States uses at any one moment. (Credit: Damien Jemison/LLNL) The dream of igniting a self-sustained fusion reaction with high yields of energy, a feat likened to creating a miniature […]

Is faster-than-light travel possible?

Alcubierre warp drive (credit: Anderson Institute) Engineers at NASA Johnson Space Center are designing instruments to find out, by slightly warping the trajectory of a photon and measuring the distance it travels, The New York Times reports. Inspiration for the research came from Mexican physicist Miguel Alcubierre, who proposed in 1994 a method of stretching space in […]

Detecting DNA in space

Gene-sequencing chip can survive space radiation on Mars, MIT scientist finds Is there DNA on Mars? (credit: NASA) If there is life on Mars, it’s not too farfetched to believe that such Martian species may share genetic roots with life on Earth, based on RNA or DNA. That’s because more than 3.5 billion years ago, […]

Wi-Fi signal used to track moving humans — even behind walls

Tracking human motion with Wi-Vi. Left: traces for one human; center: for two humans; and right: for three humans moving behind the wall of a closed room. (Credit: Fadel Adib and Dina Katabi) ‘Researchers at MIT’s Computer Science and Artificial Intelligence Laboratory.are developing a system called “Wi-Vi” that transmits a low-power Wi-Fi signal and uses its reflections to track […]

Google and NASA launch Quantum Artificial Intelligence Lab

The chip at the heart of one of D-Wave’s computers (credit: D-Wave) Google, in partnership with NASA and the Universities Space Research Association (USRA), has launched an initiative to investigate how quantum computing might lead to breakthroughs in machine learning, a branch of AI that focuses on construction and study of systems that learn from data.. The new lab will use […]

First biological signature of a supernova

Remnants of a similar supernova explosion in the constellation Cassiopeia, about 11,000 light-years away.  (Credit: NASA/JPL-Caltech/STScI/CXC/SAO) Researchers at the Technical University of Munich have found a radioactive iron isotope in bacteria microfossils.that they trace back to a supernova in our cosmic neighborhood. This is the first proven biological signature of a starburst on our earth. The age determination of […]