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Mars Base

Solar Tornadoes Dance Across Sun's Surface in NASA Video | Sun Tornado & Solar Flares |... - 0 views

  • The tornado-like eruptions of super-hot plasma were spotted by NASA's Solar Dynamics Observatory, which is constantly recording high-definition videos of the sun.
  • shows swirling fountains of plasma creeping across the surface of the sun during a 30-hour period between Feb. 7 and 8.
  • unlike tornadoes on Earth, which are wind-driven phenomena, the sun's plasma tornadoes are shaped by the powerful magnetic field of our star.
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  • active region rotating into view provides a bright backdrop to the gyrating streams of plasma
  • particles are being pulled this way and that by competing magnetic forces
  • tracking along strands of magnetic field lines
  • cooler plasma material appears as darker spots on a bright background
  • SDO spacecraft recorded the video in the extreme ultraviolet range of the light spectrum, giving the movie an eerie yellow hue.
  • released
  • SDO video
  • mark the second anniversary
  • on a five-year mission to record high-definition videos of the sun to help astronomers better understand how changes in the sun's solar weather cycle can affect life on Earth.
  • launched on Feb. 11, 2010
Mars Base

NASA - Astronaut's Home Away from Home - 0 views

  • take care of the astronauts 24/7 in the Astronaut Crew Quarters during preflight training and leading up to all shuttle launches
  • they work in shifts, with additional staff called in as needed to help cook and clean.
  • The crew is extremely busy when they come in," Hooper said. "We could not function without all of the group's efforts to take care of the astronauts."
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  • Those who work in the crew quarters include cooks, attendants, flight data file personnel, flight nurses and other astronauts supporting the crew.
  • Inside an area that dates back to the Apollo Program are facilities that have been upgraded throughout the years, including a kitchen, staff conference room, crew conference room, workout room, lounge, laundry room, computer room, suit-up room, dining room, medical facility, staff office and prime crew sleeping quarters.
  • access to crew quarters is limited to the staff and astronaut support personnel leading up to each launch
  • certified food handlers
  • team's typical day begins at 6 a.m. They get the kitchen going for breakfast, lunch and dinner. Laundry and inventory are completed. Maintenance trouble calls are tended to, and sleeping quarters and the beach house are cleaned
  • The staff operates under NASA Johnson Space Center's Health Stabilization Program. Twice yearly, the staff undergoes a physical exam and trains regularly on health issues and crew quarters procedures
Mars Base

Darpa's Legged Squad Support System (LS3) to lighten troops' load - 0 views

  • Darpa's Legged Squad Support System (LS3)
  • The Army has identified physical overburden as one of its top five science and technology challenges
  • DARPA is developing a highly mobile, semi-autonomous legged robot, the Legged Squad Support System (LS3), to integrate with a squad of Marines or Soldiers.
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  • Recently the LS3 prototype underwent its first outdoor exercise
  • Over the course of the next 18 months, DARPA plans to complete development of and refine key capabilities to ensure LS3 is able to support dismounted squads of warfighters.
  • Features to be tested and validated include
  • ability to carry 400lbs on a 20-mile trek in 24-hours without being refueled
  • refinement of LS3’s vision sensors to track a specific individual or object, observe obstacles in its path and to autonomously make course corrections as needed
  • the addition of “hearing” technology, enabling squad members to speak commands to LS3 such as “stop,” “sit” or “come here.”
  • serves
  • mobile auxiliary power source— troops may recharge batteries for radios and handheld devices while on patrol
  • DARPA seeks to demonstrate that an LS3 can carry a considerable load from dismounted squad members, follow them through rugged terrain and interact with them in a natural way, similar to the way a trained animal and its handler interact.
  • LS3 seeks to have the responsiveness of a trained animal and the carrying capacity of a mule
  • The tests culminate in a planned capstone exercise where LS3 will embed with Marines conducting field exercises.
  • based on mobility technology advanced by DARPA’s Big Dog technology demonstrator, as well other DARPA robotics programs which developed the perception technology for LS3’s “eyes” and planned “ears.”
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