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Astronauts Build Massive Robot 'Dextre'

This photo made from NASA TV shows shuttle astronauts Richard Linnehan and Michael Foreman outside the international space station as they work on putting together Dextre, the gigantic walking and working machine on Saturday March 15, 2008. The robot's hands were attached to its 11-foot arms during the first spacewalk of Endeavour's space station trip. This time, astronauts aimed to connect the arms to the shoulders. The Canadian-built Dextre, which cost more than $200 million and was flown up on Endeavour, is designed to assist spacewalking astronauts. The hope is that the robot eventually will take over some of the more punishing chores, like lugging around big replacement parts. (AP Photo/NASA)

Astronauts Test Handyman Robot's Brakes

This photo made from NASA TV shows shuttle astronauts Richard Linnehan and Michael Foreman outside the international space station as they work on putting together Dextre, the gigantic walking and working machine on Saturday March 15, 2008. The robot's hands were attached to its 11-foot arms during the first spacewalk of Endeavour's space station trip. This time, astronauts aimed to connect the arms to the shoulders. The Canadian-built Dextre, which cost more than $200 million and was flown up on Endeavour, is designed to assist spacewalking astronauts. The hope is that the robot eventually will take over some of the more punishing chores, like lugging around big replacement parts. (AP Photo/NASA)

Astronauts to get some rest before next spacewalk

HOUSTON: Astronauts on the International Space Station and shuttle Endeavour were looking forward to some down time on Wednesday after they repositioned a new handyman robot. The Canadian-built robot, named Dextre, was assembled in orbit and outfitted with tools by spacewalking astronauts to tackle maintenance and repairs on the complex.

Astronauts finish installing maintenance robot to space station

Washington - Two astronauts Tuesday completed the third spacewalk of the latest shuttle mission to the International Space Station, putting the finishing touches on a Canadian-built, double-armed robot. Rick Linnehan and Robert Behnken worked for nearly seven hours to equip the robot with tools and spare parts before Dextre, as the robot is called, begins to help astronauts with their spacewalks and takes over some maintenance and service work on the expanding space station.

Astronauts Prepare for Fifth Spacewalk

This image from NASA TV shows astronauts during a spacewalk Thursday March 20 2008. Two spacewalking astronauts pulled out a caulk gun and high-tech kind of Silly Putty on Thursday night and tested a method for patching shuttle thermal tiles. (AP Pho ...

Astronauts conduct spacewalk to install Japan lab

The crew of the International Space Station welcome the Endeavour astronauts in the ISS's Harmony module on March 13. NASA said two astronauts returned to the ISS after completing a seven-hour spacewalk that saw a Japanese element added to the station.

Astronauts Will Assemble Robot in Space

This illustration provided by The Canadian Space Agency (CSA) displays "Dextre" (Special Purpose Dexterous Manipulator). Astronauts bound for orbit this week will dabble in science fiction, assembling a "monstrous" two-armed space station robot that will rise like Frankenstein from its transport bed. Putting together Dextre, the robot, will be one of the main jobs for the seven Endeavour astronauts, who are scheduled to blast off in the wee hours of Tuesday, March 11, 2008, less than three weeks after the last shuttle flight. (AP Photo/Canadian Space Agency) (AP)

Astronauts to Build Robot in Space

This illustration provided by The Canadian Space Agency (CSA) displays "Dextre" (Special Purpose Dexterous Manipulator). Astronauts bound for orbit this week will dabble in science fiction, assembling a "monstrous" two-armed space station robot that will rise like Frankenstein from its transport bed. Putting together Dextre, the robot, will be one of the main jobs for the seven Endeavour astronauts, who are scheduled to blast off in the wee hours of Tuesday, March 11, 2008, less than three weeks after the last shuttle flight. (Canadian Space Agency/AP Photo)

Shuttle astronauts complete second spacewalk work - Summary

Washington - Endeavour space shuttle astronauts Richard Linnehan and Mike Foreman completed a more than 7-hour spacewalk early Sunday to install Canadian-built robot, the Dextre, outside the International Space Station ISS. NASA said the spacewalk lasted 7 hours, 8 minutes as the astronauts attached the Dextre's two arms, each 3.35 metres in length, to the station.

Astronauts Complete Fifth Spacewalk

This image from NASA TV shows astronauts during a spacewalk Thursday, March 20, 2008. Two spacewalking astronauts pulled out a caulk gun and high-tech kind of Silly Putty on Thursday night and tested a method for patching shuttle thermal tiles.

Spacewalk: Astronauts Like 'Brain Surgeons'

This image from NASA TV shows astronauts during a spacewalk Thursday, March 20, 2008. Two spacewalking astronauts pulled out a caulk gun and high-tech kind of Silly Putty on Thursday night and tested a method for patching shuttle thermal tiles. (NASA/AP Photo)

Spacewalking astronauts armed with caulk gun and high-tech putty for test repairs

This image from NASA TV shows astronauts during a spacewalk Thursday, March 20, 2008. Two spacewalking astronauts pulled out a caulk gun and high-tech kind of Silly Putty on Thursday night and tested a method for patching shuttle thermal tiles. THE ASSOCIATED PRESS/NASA

Astronauts Will Assemble Robot in Space

This illustration provided by The Canadian Space Agency (CSA) displays "Dextre" (Special Purpose Dexterous Manipulator). Astronauts bound for orbit this week will dabble in science fiction, assembling a "monstrous" two-armed space station robot that will rise like Frankenstein from its transport bed. Putting together Dextre, the robot, will be one of the main jobs for the seven Endeavour astronauts, who are scheduled to blast off in the wee hours of Tuesday, March 11, 2008, less than three weeks after the last shuttle flight. (AP Photo/Canadian Space Agency)

Three Astronauts on NPR's 'This American Life'

NPR recently aired a story about day to day life in the U.S. Astronaut Corp. Ira Glass talked with three astronauts about everything from filing government travel orders for your trip to space (you mark the meals and lodging as "provided" and the method of transport as "government air") to the long wait many new astronauts will face for their first taste of low Earth orbit.

Shuttle astronauts to assemble monstrous two-armed robot at space station

The Canadian Space Agency’s ‘Dextre’ is a space-age robot with two arms, about to blast off into space Tuesday, accompanying the seven astronauts on Endeavour. They will need to assemble Dextre in space, and attach him to the outside of the space station. Although astronauts say Dextre looks scary, without artificial intelligence ‘he’ will be controlled remotely and will be taking over some of the work that they used to do in dangerous outdoor conditions

NASA declares spacewalking astronauts' tile repair test success

This image from NASA TV shows astronauts during a spacewalk Thursday, March 20, 2008. Two spacewalking astronauts pulled out a caulk gun and high-tech kind of Silly Putty on Thursday night and tested a method for patching shuttle thermal tiles. THE ASSOCIATED PRESS/NASA

NASA declares spacewalking astronauts' tile repair test success

This image from NASA TV shows astronauts during a spacewalk Thursday, March 20, 2008. Two spacewalking astronauts pulled out a caulk gun and high-tech kind of Silly Putty on Thursday night and tested a method for patching shuttle thermal tiles. THE ASSOCIATED PRESS/NASA

Space Shuttle Astronauts to Join Prestigious U.S. Astronaut Hall of Fame

Kennedy Space Center, FL – April 2008 – The seventh group of Space Shuttle astronauts has been named to the U.S. Astronaut Hall of Fame. Veteran Space Shuttle Astronauts John E. Blaha, Robert D. Cabana, Bryan D. O’Connor and Loren J. Shriver will join an elite group of American space heroes as they are inducted into the U.S. Astronaut Hall of Fame®. Earlier inductees represent the Mercury, Gemini, Apollo, Skylab and Apollo-Soyuz programs. They will join the ranks of legendary space pioneers like Neil Armstrong, John Glenn, Alan Shepard, Sally Ride and John Young. The public ceremony at Kennedy Space Center Visitor Complex will be held Saturday, May 3 at 3:00 p.m.

Will the Earth fry future moon astronauts?

Researchers working for NASA’s Lunar Reconnaissance Orbiter mission have discovered that the Earth’s magnetic tail could be harmful to future astronauts. The moon stays inside Earth’s ‘magnetotail’ for six days every month — during full moon. This can have consequences ranging from lunar ‘dust storms’ to strong electrostatic discharges, according to one researcher quoted by NASA in ‘The Moon and the Magnetotail.’ So far, this is pure speculation: no man has been on the moon when the magnetotail hits. As added the same scientist, ‘Apollo astronauts never landed on a full moon and they never experienced the magnetotail.’ But read more…

Robot Gets Eyes, Tools in Spacewalk

This photo made from NASA TV shows shuttle astronauts Richard Linnehan and Michael Foreman outside the international space station as they work on putting together Dextre, the gigantic walking and working machine on Saturday March 15, 2008. The robot's hands were attached to its 11-foot arms during the first spacewalk of Endeavour's space station trip. This time, astronauts aimed to connect the arms to the shoulders. The Canadian-built Dextre, which cost more than $200 million and was flown up on Endeavour, is designed to assist spacewalking astronauts. The hope is that the robot eventually will take over some of the more punishing chores, like lugging around big replacement parts. (AP Photo/NASA)

New Robot Gets Eyes, Tools in Spacewalk

This photo made from NASA TV shows shuttle astronauts Richard Linnehan and Michael Foreman outside the international space station as they work on putting together Dextre, the gigantic walking and working machine on Saturday March 15, 2008. The robot's hands were attached to its 11-foot arms during the first spacewalk of Endeavour's space station trip. This time, astronauts aimed to connect the arms to the shoulders. The Canadian-built Dextre, which cost more than $200 million and was flown up on Endeavour, is designed to assist spacewalking astronauts. The hope is that the robot eventually will take over some of the more punishing chores, like lugging around big replacement parts. (AP Photo/NASA)

Robot Getting Eyes, Tools in Spacewalk

This photo made from NASA TV shows shuttle astronauts Richard Linnehan and Michael Foreman outside the international space station as they work on putting together Dextre, the gigantic walking and working machine on Saturday March 15, 2008. The robot's hands were attached to its 11-foot arms during the first spacewalk of Endeavour's space station trip. This time, astronauts aimed to connect the arms to the shoulders. The Canadian-built Dextre, which cost more than $200 million and was flown up on Endeavour, is designed to assist spacewalking astronauts. The hope is that the robot eventually will take over some of the more punishing chores, like lugging around big replacement parts. (AP Photo/NASA)

Space Robot -- Not 'Hal' -- Comes Alive

This photo made from NASA TV shows shuttle astronauts Richard Linnehan and Michael Foreman outside the international space station as they work on putting together Dextre, the gigantic walking and working machine on Saturday March 15, 2008. The robot's hands were attached to its 11-foot arms during the first spacewalk of Endeavour's space station trip. This time, astronauts aimed to connect the arms to the shoulders. The Canadian-built Dextre, which cost more than $200 million and was flown up on Endeavour, is designed to assist spacewalking astronauts. The hope is that the robot eventually will take over some of the more punishing chores, like lugging around big replacement parts. (AP Photo/NASA) (AP)

Space Robot Flexes Arms for First Time

This photo made from NASA TV shows shuttle astronauts Richard Linnehan and Michael Foreman outside the international space station as they work on putting together Dextre, the gigantic walking and working machine on Saturday March 15, 2008. The robot's hands were attached to its 11-foot arms during the first spacewalk of Endeavour's space station trip. This time, astronauts aimed to connect the arms to the shoulders. The Canadian-built Dextre, which cost more than $200 million and was flown up on Endeavour, is designed to assist spacewalking astronauts. The hope is that the robot eventually will take over some of the more punishing chores, like lugging around big replacement parts. (AP Photo/NASA)

Report: Managing Space Radiation Risk in the New Era of Space Exploration

Space exploration is a risky enterprise. Rockets launch astronauts at enormous speeds into a harsh, unforgiving environment. Spacecraft must withstand the bitter cold of space and the blistering heat of reentry. Their skin must be strong enough to keep the inside comfortably pressurized and tough enough to resist damage from micrometeoroids. Spacecraft meant for lunar or planetary landings must survive the jar of landing, tolerate dust, and be able to take off again. For astronauts, however, there is one danger in space that does not end when they step out of their spacecraft. The radiation that permeates space-- unattenuated by Earth's atmosphere and magnetosphere--may damage or kill cells within astronauts' bodies, resulting in cancer or other health consequences years after a mission ends.

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