Physics

Watch This: Comet May Be Headed For Impact with Mars

If you're among those who would like to call Mars home someday, we would suggest holding off until at least next fall. That's when NASA says a comet may ram into the Red Planet.
Comet 2013 A1 is currently clipping along at about 125,000 miles per hour and measures somewhere between 0.5 and 2 miles in diameter. Its trajectory is set to cross Mars' orbit in October 2014. How likely are the two bodies to hit? Not very. The chances are a mere 1 in 2,000.

But if the comet does hit the surface of

Creating Art from Microbes and Molecules

Maverick Joe Davis creates art—and controversy—out of bacteria, deep space transmissions, and lightning.

April Sky: Halos and Dogs

Clouds and a full (or nearly so) moon are required for a sight almost as rare as a werewolf: the elusive moon dog.

NOvA neutrino detector records first 3-D particle tracks

(Phys.org) —What will soon be the most powerful neutrino detector in the United States has recorded its first three-dimensional images of particles.

Artificial muscle computer performs as a universal Turing machine

(Phys.org) —In 1936, Alan Turing showed that all computers are simply manifestations of an underlying logical architecture, no matter what materials they're made of. Although most of the computer's we're familiar with are made of silicon semiconductors, other computers have been made of DNA, light, legos, paper, and many other unconventional materials.

Scientists propose revolutionary laser system to produce the next LHC

An international team of physicists has proposed a revolutionary laser system, inspired by the telecommunications technology, to produce the next generation of particle accelerators, such as the Large Hadron Collider.

Georgia Students To Speak Live with Space Station Commander

Students and educators at Stratford Academy in Macon, Ga., will speak with Canadian Space Agency astronaut Chris Hadfield aboard the International Space Station on Wednesday, April 3, via amateur radio. Media are invited to attend at the school.

New Space Station Residents En Route to Orbiting Laboratory

Three new crew members are on an unprecedented fast track to the International Space Station, going from the launch pad to the orbiting complex in just six hours.

Better than X-rays: A more powerful terahertz imaging system

(Phys.org) —Low-energy terahertz radiation could potentially enable doctors to see deep into tissues without the damaging effects of X-rays, or allow security guards to identify chemicals in a package without opening it. But it's been difficult for engineers to make powerful enough systems to accomplish these promising applications.

Rare find backs shape-shifting neutrino

Physicists announced further proof Wednesday for a theory that mysterious particles called neutrinos which go "missing" on the journey from the Sun to Earth are in fact shape-shifting along the way, arriving undetected.

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