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Science/Technology

  • Motorola Unveils New Razr Smartphones
  • Voyager 1 is heading for the stars

    PASADENA, Calif. (AP) — Thirty-five years after leaving Earth, Voyager 1 is reaching for the stars.

    Sooner or later, the workhorse spacecraft will bid adieu to the solar system and enter a new realm of space — the first time a manmade object will have escaped to the other side.

    Perhaps no one on Earth will relish the moment more than 76-year-old Ed Stone, who has toiled on the project from the start.

    "We're anxious to get outside and find what's out there," he said.

    When NASA's Voyager 1 and Voyager 2 first rocketed out of Earth's grip in 1977, no one knew how long they would live. Now, they are the longest-operating spacecraft in history and the most distant, at billions of miles from Earth but in different directions.

    Wednesday marks the 35th anniversary of Voyager 1's launch to Jupiter and Saturn. It is now flitting around the fringes of the solar system, which is enveloped in a giant plasma bubble. This hot and turbulent area is created by a stream of charged particles from the sun.

    Outside the bubble is a new frontier in the Milky Way — the space between stars. Once it plows through, scientists expect a calmer environment by comparison.

  • Newest Tablets Show Future of Mobile Computing
  • Raw Video: Mars Rover, Jettison to Touchdown

    NASA has recently release video of the NASA Curiosity rover landing from the jettison of the head shield to the touchdown.

  • Laser research shows promise for cancer treatment

    Scientists at Los Alamos National Laboratory have observed for the first time how a laser penetrates dense, electron-rich plasma to generate ions. The process has applications for developing next generation particle accelerators and new cancer treatments.

    The results, published online Aug. 19 in Nature Physics, also confirm predictions made more than 60 years ago about the fundamental physics of laser-plasma interaction. Plasmas dense with electrons normally reflect laser light like a mirror. But a strong laser can drive those electrons to near the speed of light, making the plasma transparent and accelerating the plasma ions.

    “That idea has been met with some skepticism in the field,” said Rahul Shah of LANL’s plasma physics group. “We think that we’ve settled that controversy.”

    The team, which also included researchers from the Max Planck Institute for Quantum Optics in Garching, Germany and Queens University in Belfast, UK, used the 200 trillion-watt short-pulse TRIDENT laser at Los Alamos National Laboratory to observe the transparency phenomenon at 50 femtosecond resolution. Until now, those dynamics have been witnessed only in computer simulations.

  • NASA rover Curiosity shoots a Mars rock with laser

     

     NASA's Curiosity rover has zapped its first Martian rock, aiming its laser for the sake of science.

    During the target practice on Sunday. Curiosity fired 30 pulses at a nearby rock over a 10-second window, burning a small hole.

    Since landing in Gale Crater two weeks ago, the six-wheel rover has been checking out its instruments including the laser. During its two-year mission, Curiosity was expected to point the laser at various rocks as it drives toward Mount Sharp, a 3-mile-high mountain rising from the crater floor.

    Its goal is to determine whether the Martian environment was habitable.

  • Raw Image: New Image of Mars Gale Crater
  • Mars Landing: Curiosity Rover Set to Land Sunday
  • Standing at ground zero during 1950s nuclear test
  • Developers pull plans for New Mexico scientific ghost town

    ALBUQUERQUE, N.M. (AP) — The company behind plans to build a scientific ghost town says it is pulling out of a deal to develop the make-believe city near Hobbs.

    Pegasus Global Holdings in May announced with much fanfare its selection of a 15-square mile site in Hobbs and Lea County near the Texas border for development of the Center for Innovation, Technology and Testing. Officials said they had hoped to break ground by the end of June.