03/08/2005

NASA considers second emergency spacewalk

The successful emergency spacewalk by a shuttle Discovery astronaut Wednesday might soon be followed by the world's second such emergency repair mission.

Finding may explain link between alcohol and certain cancers

Drinking alcoholic beverages has been linked to an increased risk of upper gastrointestinal cancer and other types of cancer. Researchers looking for the potential biochemical basis for this link have focused on acetaldehyde, ...

'Smart' Bio-nanotubes Developed; May Help in Drug Delivery

Materials scientists working with biologists at the University of California, Santa Barbara have developed "smart" bio-nanotubes - with open or closed ends - that could be developed for drug or gene delivery applications.

First in-orbit space shuttle repair successful (Update)

Updated: The STS-114 crew completed heat shield repairs efforts on Space Shuttle Discovery’s underbelly during today’s spacewalk. STS-114 Mission Specialist Steve Robinson removed gap fillers that were protruding from ...

The Web: Silencing jihadi Web sites

The online communications channel between al-Qaida's shadowy leaders and its terrorist operatives has been severely disrupted in recent weeks -- since the July 7, 2005, jihadi attacks on London -- apparently by British intelligence.

Messenger spacecraft on way to Mercury

NASA's Messenger spacecraft swung by Earth for a Tuesday gravity assist that propelled it deeper into space on its long journey toward Mercury.

Gemini Samples Spectrum Of 2003 UB313: Pluto-Like Surface

The Gemini Observatory has obtained a preliminary spectrum of 2003 UB313, the lastest so-called "10th planet". These observations were obtained on January 25, 2005 by Chad Trujillo, a Gemini staff member who is also on the ...

NASA, Industry Partner Test 20-Meter Solar Sail System

NASA has reached a milestone in the testing of solar sails -- a unique propulsion technology that will use sunlight to propel vehicles through space. Engineers have successfully deployed a 20-meter solar sail system that ...

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