Satellite News

Satellites are used for a large number of purposes. Common types include military (spy) and civilian Earth observation satellites, communication satellites, navigation satellites, weather satellites, and research satellites.

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NASA Probe Sees Solar Wind Decline

The 33-year odyssey of NASA's Voyager 1 spacecraft has reached a distant point at the edge of our solar system where there is no outward motion of solar wind. Now hurtling toward interstellar space some 17.4 billion...

Super-Earth Atmosphere

A team of astronomers, including two NASA Sagan Fellows, has made the first characterizations of a super-Earth's atmosphere, by using a ground-based telescope...

Kepler Discovers

NASA's Kepler spacecraft has discovered the first confirmed planetary system with more than one planet crossing in front of, or transiting, the same star...

Pulverized Planet

Tight double-star systems might not be the best places for life to spring up, according to a new study using data from NASA's Spitzer Space Telescope....

Dark Asteroids

NASA is set to launch a sensitive new infrared telescope to seek out sneaky things in the night sky -- among them, dark asteroids that could pose a threat to Earth....

NASA's chief of safety and mission assurance since 2002, has announced plans to retire from the agency on Aug. 31.

"Bryan is a fellow Marine, trusted advisor and friend I have been privileged to serve with off and on since our years as plebes at the U.S. Naval Academy," NASA Administrator Charles Bolden said. "I am deeply grateful for his vigilance over the safety and well-being of NASA's people and its work. His concern and commitment have encompassed not just the space shuttle and the astronaut corps, but every mission, large or small, and every member of the NASA family. He'll be sorely missed."

O'Connor announced his plans to members of his staff in NASA's Office of Safety and Mission Assurance on Tuesday. In his current role, he is responsible for the safety, reliability, maintainability and quality assurance of all NASA programs.

"Even though good practice suggests shorter tours for senior leaders, I did not want to pass the safety baton until after the STS-135 crew left Atlantis on the runway," O'Connor said. "This transition is a great time to let someone new takes on this wonderful role you've permitted me to serve in."

Atlantis completed STS-135, the last mission of the space shuttle program, with a landing at NASA's Kennedy Space Center in Florida on July 21.

O'Connor held management positions in NASA's space shuttle, International Space Station, and Shuttle-Mir programs, and played prominent safety management roles in the agency's recovery from two space shuttle accidents, the loss of Challenger in 1986 and the loss of Columbia in 2003. Prior to that, he joined NASA's astronaut corps in 1980 and flew two missions aboard the space shuttle.

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