May 29, 2009 |
A decadelong effort to refurbish thousands of aging nuclear warheads has run into serious technical problems that have forced delays and exacerbated concerns about the Energy Department's ability to maintain the nation's strategic deterrent. The program involves a type of warhead known as the W76, which is used on the Navy's Trident missile system and makes up more than half of the deployed warheads in the U.S. stockpile.
May 18, 2009 |
Astronauts Michael Massimino and Michael Good were hoping that their tough repair mission Sunday to fix the Hubble telescope's black-hole hunter would go as smoothly as Saturday's spacewalk, which revived a dead space camera on the observatory. No such luck. The two managed to pull off the fix after eight hours and two minutes, but it was one of the most frustrating spacewalks in NASA history, stymied by a stuck bolt and a balky tool.
May 12, 2009 |
The space shuttle Atlantis blasted off Monday from Kennedy Space Center in Florida on a challenging 11-day mission to repair and upgrade the Hubble Space Telescope. The shuttle and its seven-person crew lifted off on schedule at 2 p.m. EDT, reaching orbit after an eight-minute jump from a standing start to 17,000 mph. At a post-launch media briefing, NASA officials said it appeared the spacecraft had performed nearly flawlessly.
May 10, 2009 |
After 19 years of service, during which time it has provided the most eye-popping images ever of galaxies, nebulae and, most recently, of a planet orbiting an alien star, the Hubble Space Telescope is suffering the pains of old age. It's unsteady, with only half its gyroscopes working, and several of its key science instruments are broken. To restore the ailing telescope to its former glory, NASA on Monday is set to launch the fifth and final repair mission to the orbiting telescope.
March 15, 2009 |
NASA is unsure what caused the hydrogen gas leak that prevented space shuttle Discovery from flying, but will attempt another launch today. Shuttle managers are hopeful that repairs at the Cape Canaveral launchpad have solved the problem. There is "a potential risk" that the leak will recur, said Mike Moses, chairman of the mission management team. That would mean yet another delay for the international space station construction mission, which is already more than a month behind.
March 12, 2009 |
Amid allegations of conflict of interest, the five members of the California Energy Commission voted unanimously Wednesday to tell lawmakers there was no benefit to fixing service station pumps to end an inequity that may be costing Californians millions of dollars a year.