Saturday, January 28, 2012

NASA's James Webb Space Telescope: A Year of Achievement and Success


The James Webb Space Telescope marked a year of significant progress in 2011 as it continues to come together as NASA's next generation space telescope. The year brought forth a pathfinder backplane to support the large primary mirror structure, mirror cryotesting, creation of mirror support structures, several successful sunshield layer tests and the creation of an assembly station within NASA Goddard Space Flight Center's cleanroom. Achievements were also made in the areas of flight and communications software and the propulsion system.

In December, manufacturing and testing of all flight mirrors was completed in a final test at the X-ray and Calibration Facility at Marshall Space Flight Center, Huntsville, Ala. During these tests mirror segments were chilled to temperatures similar to those Webb will see in space, around minus 400 degrees Fahrenheit.

It was the culmination of work started in 2003. Heeding lessons learned from the Hubble Space Telescope, the program adopted the strategy of tackling the most difficult technical challenges first. That decision proved to be the right one. In June, all 18 flight primary mirror segments, plus the secondary, tertiary and fine steering mirrors, were polished and coated yielding exquisite surfaces that will enable Webb to image the most distant galaxies.

Two of Webb’s supporting and pathfinder structures were also completed. To assemble the flight telescope on the ground, a 139,000 pound structure will install the flight mirrors using an overhead track system supporting a robotic arm. The huge platform has been completed and assembled in the ultra-clean room used for telescope assembly at Goddard.

For more info, visit:
http://www.nasa.gov/topics/technology/features/webb-2011progress.html

Tuesday, January 24, 2012

Supersonic Research Fleet Grows at Kennedy

The final pieces of a unique squadron of supersonic fighters arrived at NASA's Kennedy Space Center in Florida on Thursday, Jan. 19, where they will be reassembled and put to work with a private company aiming to use them for research and microgravity training.

The new planes were part of a group of five F-104 fighters bought by Starfighters Inc. from the Italian Air Force. The company already had four of the aircraft, but that wasn't enough for the company to pursue a number of different opportunities.

With nine aircraft at his disposal, Starfighters owner Rick Svetkoff said there will always be aircraft available to fly missions for a variety of customers. As importantly, the company will have what it needs to fly two aircraft on a single mission, with one serving as a chase plane to photograph experiments.

"Now we're in a position where we can really start operations," Svetkoff said. "Before, we couldn't do a lot of things we wanted to do."

Starfighters operates out of a hangar at the Shuttle Landing Facility at Kennedy under an agreement with Kennedy. Svetkoff's main goal is to fly research and development missions, ranging from experiments flown for universities to evaluating rocket and spacecraft components in high-stress environments including high-acceleration and microgravity.

Space Florida and Embry-Riddle University already have partnerships with the company.

Because the aircraft can soar to some 70,000 feet and speed past Mach 2, it can be used to launch small satellites into space. The 19-foot-long, 900-pound rocket, about the size of a Sparrow missile, has already been tested in a series of taxi runs hanging from an F-104's wings.

For more info, read http://www.nasa.gov/centers/kennedy/news/starfightersnewplanes.html

Thursday, January 12, 2012

NASA Helps Kick Off 2012 FIRST Robotics Competition

An international robotics competition aimed at developing a new generation of technology leaders kicks off at 10:30 a.m. EST Saturday, Jan. 7. NASA, the largest sponsor of the FIRST Robotics Competition, and its centers across the nation will join local technology firms to launch the event. The main competition kickoff will take place at Southern New Hampshire University in Manchester and will air live on NASA Television.

FIRST -- or For Inspiration and Recognition of Science and Technology -- is a long-standing challenge to inspire curiosity and create interest in science, technology, engineering and mathematics (STEM) among high school students. Encouraging students to pursue STEM studies and careers is the focus of NASA's education programs.

"NASA's Science Mission Directorate is proud to have sponsored this technology revolution for the past 19 years," said John Grunsfeld, NASA's associate administrator for the agency's Science Mission Directorate in Washington. "This program has given tens of thousands of students a crucial mentoring experience if they choose to be a part of future exploration endeavors in space. FIRST Robotics is fun and exciting and will sustain an unprecedented positive educational impact on our nation's youth."

The FIRST Robotics Competition gives students the opportunity to design, build and test a robot that can perform specific functions. The competition also gives students the opportunity to be mentored by NASA professionals, who help them to explore potential solutions to robotics problems and understand the real-world challenges faced by engineers and researchers.

"FIRST Robotics has had a tremendous impact on students' interest in robotics and invention since its inception," said Leland Melvin, NASA's associate administrator for Education. "In fact, it was a mutual interest in FIRST Robotics that led the agency to a recently announced collaboration with entertainer will.i.am. We are excited to work together to help inspire the next generation to pursue STEM and robotics studies."

For more info, visit :

http://www.nasa.gov/home/hqnews/2012/jan/HQ_12-004_FIRST_Robotics.html

Wednesday, January 11, 2012

NASA 'Smart SPHERES' Tested Successfully on International Space Station

In November, a free-flying robot on the International Space Station successfully gathered and delivered motion data to its astronaut handler via a new smartphone controller.

The Human Exploration Telerobotics project, one of NASA's new, high-value Technology Demonstration Missions, equipped the compact, free-flying satellites - known as Synchronized Position Hold, Engage, Reorient Experimental Satellites, or SPHERES - with a Samsung Nexus S handset that features Google’s open-source Android platform.

Each volleyball-sized SPHERES has its own onboard power, propulsion, computing and navigational software. Adding the smartphone transforms the satellite into a free-flying robot, or "Smart SPHERES" -- complete with a compact, low-power, low-cost embedded computer and built-in cameras and sensors to enhance and expand robotic operations.

Minor modifications were made to the smartphones, including removing the GSM cellular communications chip to avoid interference with station electronics, and replacing the standard lithium-ion battery with AA alkaline batteries. Otherwise, the smartphone is identical to the off-the-shelf consumer device.

The ongoing experiment demonstrates how the Smart SPHERES can serve as remotely operated assistants for astronauts in space. In coming months, these compact assistants will conduct interior station surveys and inspections, capturing mobile camera images and video. NASA also plans to simulate external free-flight excursions and in time will test whether the robots can handle other, more challenging tasks.

For more info, Visit : http://www.nasa.gov/mission_pages/tdm/telerobotics/11-160.html